Primitive Type usize 

The pointer-sized unsigned integer type.

The size of this primitive is how many bytes it takes to reference any location in memory. For example, on a 32 bit target, this is 4 bytes and on a 64 bit target, this is 8 bytes.

Implementations

impl usize

pub const MIN: Self = 0

The smallest value that can be represented by this integer type.

Examples

assert_eq!(usize::MIN, 0);

pub const MAX: Self

The largest value that can be represented by this integer type (2³² − 1 on 32-bit targets).

Examples

assert_eq!(usize::MAX, 4294967295);

pub const BITS: u32

The size of this integer type in bits.

Examples

assert_eq!(usize::BITS, 32);

pub const fn count_ones(self) -> u32

Returns the number of ones in the binary representation of self.

Examples

let n = 0b01001100usize;
assert_eq!(n.count_ones(), 3);

let max = usize::MAX;
assert_eq!(max.count_ones(), 32);

let zero = 0usize;
assert_eq!(zero.count_ones(), 0);

pub const fn count_zeros(self) -> u32

Returns the number of zeros in the binary representation of self.

Examples

let zero = 0usize;
assert_eq!(zero.count_zeros(), 32);

let max = usize::MAX;
assert_eq!(max.count_zeros(), 0);

This is heavily dependent on the width of the type, and thus might give surprising results depending on type inference:

let lucky = 7;
foo(lucky);
assert_eq!(lucky.count_zeros(), 5);
assert_eq!(lucky.count_ones(), 3);

let lucky = 7;
bar(lucky);
assert_eq!(lucky.count_zeros(), 13);
assert_eq!(lucky.count_ones(), 3);

You might want to use Self::count_ones instead, or emphasize the type you’re using in the call rather than method syntax:

let small = 1;
assert_eq!(usize::count_zeros(small), 31);

pub const fn leading_zeros(self) -> u32

Returns the number of leading zeros in the binary representation of self.

Depending on what you’re doing with the value, you might also be interested in the ilog2 function which returns a consistent number, even if the type widens.

Examples

let n = usize::MAX >> 2;
assert_eq!(n.leading_zeros(), 2);

let zero = 0usize;
assert_eq!(zero.leading_zeros(), 32);

let max = usize::MAX;
assert_eq!(max.leading_zeros(), 0);

pub const fn trailing_zeros(self) -> u32

Returns the number of trailing zeros in the binary representation of self.

Examples

let n = 0b0101000usize;
assert_eq!(n.trailing_zeros(), 3);

let zero = 0usize;
assert_eq!(zero.trailing_zeros(), 32);

let max = usize::MAX;
assert_eq!(max.trailing_zeros(), 0);

pub const fn leading_ones(self) -> u32

Returns the number of leading ones in the binary representation of self.

Examples

let n = !(usize::MAX >> 2);
assert_eq!(n.leading_ones(), 2);

let zero = 0usize;
assert_eq!(zero.leading_ones(), 0);

let max = usize::MAX;
assert_eq!(max.leading_ones(), 32);

pub const fn trailing_ones(self) -> u32

Returns the number of trailing ones in the binary representation of self.

Examples

let n = 0b1010111usize;
assert_eq!(n.trailing_ones(), 3);

let zero = 0usize;
assert_eq!(zero.trailing_ones(), 0);

let max = usize::MAX;
assert_eq!(max.trailing_ones(), 32);

pub const fn bit_width(self) -> u32

🔬This is a nightly-only experimental API. (uint_bit_width #142326)

Returns the minimum number of bits required to represent self.

This method returns zero if self is zero.

Examples

#![feature(uint_bit_width)]

assert_eq!(0_usize.bit_width(), 0);
assert_eq!(0b111_usize.bit_width(), 3);
assert_eq!(0b1110_usize.bit_width(), 4);
assert_eq!(usize::MAX.bit_width(), 32);

pub const fn isolate_highest_one(self) -> Self

🔬This is a nightly-only experimental API. (isolate_most_least_significant_one #136909)

Returns self with only the most significant bit set, or 0 if the input is 0.

Examples

#![feature(isolate_most_least_significant_one)]

let n: usize = 0b_01100100;

assert_eq!(n.isolate_highest_one(), 0b_01000000);
assert_eq!(0_usize.isolate_highest_one(), 0);

pub const fn isolate_lowest_one(self) -> Self

🔬This is a nightly-only experimental API. (isolate_most_least_significant_one #136909)

Returns self with only the least significant bit set, or 0 if the input is 0.

Examples

#![feature(isolate_most_least_significant_one)]

let n: usize = 0b_01100100;

assert_eq!(n.isolate_lowest_one(), 0b_00000100);
assert_eq!(0_usize.isolate_lowest_one(), 0);

pub const fn highest_one(self) -> Option<u32>

🔬This is a nightly-only experimental API. (int_lowest_highest_one #145203)

Returns the index of the highest bit set to one in self, or None if self is 0.

Examples

#![feature(int_lowest_highest_one)]

assert_eq!(0b0_usize.highest_one(), None);
assert_eq!(0b1_usize.highest_one(), Some(0));
assert_eq!(0b1_0000_usize.highest_one(), Some(4));
assert_eq!(0b1_1111_usize.highest_one(), Some(4));

pub const fn lowest_one(self) -> Option<u32>

🔬This is a nightly-only experimental API. (int_lowest_highest_one #145203)

Returns the index of the lowest bit set to one in self, or None if self is 0.

Examples

#![feature(int_lowest_highest_one)]

assert_eq!(0b0_usize.lowest_one(), None);
assert_eq!(0b1_usize.lowest_one(), Some(0));
assert_eq!(0b1_0000_usize.lowest_one(), Some(4));
assert_eq!(0b1_1111_usize.lowest_one(), Some(0));

pub const fn cast_signed(self) -> isize

Returns the bit pattern of self reinterpreted as a signed integer of the same size.

This produces the same result as an as cast, but ensures that the bit-width remains the same.

Examples

let n = usize::MAX;

assert_eq!(n.cast_signed(), -1isize);

pub const fn rotate_left(self, n: u32) -> Self

Shifts the bits to the left by a specified amount, n, wrapping the truncated bits to the end of the resulting integer.

rotate_left(n) is equivalent to applying rotate_left(1) a total of n times. In particular, a rotation by the number of bits in self returns the input value unchanged.

Please note this isn’t the same operation as the << shifting operator!

Examples

let n = 0x10000b3usize;
let m = 0xb301;

assert_eq!(n.rotate_left(8), m);
assert_eq!(n.rotate_left(1024), n);

pub const fn rotate_right(self, n: u32) -> Self

Shifts the bits to the right by a specified amount, n, wrapping the truncated bits to the beginning of the resulting integer.

rotate_right(n) is equivalent to applying rotate_right(1) a total of n times. In particular, a rotation by the number of bits in self returns the input value unchanged.

Please note this isn’t the same operation as the >> shifting operator!

Examples

let n = 0xb301usize;
let m = 0x10000b3;

assert_eq!(n.rotate_right(8), m);
assert_eq!(n.rotate_right(1024), n);

pub const fn funnel_shl(self, rhs: Self, n: u32) -> Self

🔬This is a nightly-only experimental API. (funnel_shifts #145686)

Performs a left funnel shift (concatenates self with rhs, with self making up the most significant half, then shifts the combined value left by n, and most significant half is extracted to produce the result).

Please note this isn’t the same operation as the << shifting operator or rotate_left, although a.funnel_shl(a, n) is equivalent to a.rotate_left(n).

Panics

If n is greater than or equal to the number of bits in self

Examples

Basic usage:

#![feature(funnel_shifts)]
let a = 0x10000b3usize;
let b = 0x2fe78e45usize;
let m = 0xb32f;

assert_eq!(a.funnel_shl(b, 8), m);

pub const fn funnel_shr(self, rhs: Self, n: u32) -> Self

🔬This is a nightly-only experimental API. (funnel_shifts #145686)

Performs a right funnel shift (concatenates self and rhs, with self making up the most significant half, then shifts the combined value right by n, and least significant half is extracted to produce the result).

Please note this isn’t the same operation as the >> shifting operator or rotate_right, although a.funnel_shr(a, n) is equivalent to a.rotate_right(n).

Panics

If n is greater than or equal to the number of bits in self

Examples

Basic usage:

#![feature(funnel_shifts)]
let a = 0x10000b3usize;
let b = 0x2fe78e45usize;
let m = 0xb32fe78e;

assert_eq!(a.funnel_shr(b, 8), m);

pub const fn carryless_mul(self, rhs: Self) -> Self

🔬This is a nightly-only experimental API. (uint_carryless_mul #152080)

Performs a carry-less multiplication, returning the lower bits.

This operation is similar to long multiplication in base 2, except that exclusive or is used instead of addition. The implementation is equivalent to:

pub fn carryless_mul(lhs: usize, rhs: usize) -> usize{
    let mut retval = 0;
    for i in 0..usize::BITS {
        if (rhs >> i) & 1 != 0 {
            // long multiplication would use +=
            retval ^= lhs << i;
        }
    }
    retval
}

The actual implementation is more efficient, and on some platforms lowers directly to a dedicated instruction.

Uses

Carryless multiplication can be used to turn a bitmask of quote characters into a bit mask of characters surrounded by quotes:

r#"abc xxx "foobar" zzz "a"!"#; // input string
 0b0000000010000001000001010; // quote_mask
 0b0000000001111110000000100; // quote_mask.carryless_mul(!0) & !quote_mask

Another use is in cryptography, where carryless multiplication allows for efficient implementations of polynomial multiplication in GF(2)[X], the polynomial ring over GF(2).

Examples

#![feature(uint_carryless_mul)]

let a = 0x56789012usize;
let b = 0xf52ecd34usize;

assert_eq!(a.carryless_mul(b), 0x9b980928);

pub const fn swap_bytes(self) -> Self

Reverses the byte order of the integer.

Examples

let n = 0x12345678usize;
let m = n.swap_bytes();

assert_eq!(m, 0x78563412);

pub const fn extract_bits(self, mask: Self) -> Self

🔬This is a nightly-only experimental API. (uint_gather_scatter_bits #149069)

Returns an integer with the bit locations specified by mask packed contiguously into the least significant bits of the result.

#![feature(uint_gather_scatter_bits)]
let n: usize = 0b1011_1100;

assert_eq!(n.extract_bits(0b0010_0100), 0b0000_0011);
assert_eq!(n.extract_bits(0xF0), 0b0000_1011);

pub const fn deposit_bits(self, mask: Self) -> Self

🔬This is a nightly-only experimental API. (uint_gather_scatter_bits #149069)

Returns an integer with the least significant bits of self distributed to the bit locations specified by mask.

#![feature(uint_gather_scatter_bits)]
let n: usize = 0b1010_1101;

assert_eq!(n.deposit_bits(0b0101_0101), 0b0101_0001);
assert_eq!(n.deposit_bits(0xF0), 0b1101_0000);

pub const fn reverse_bits(self) -> Self

Reverses the order of bits in the integer. The least significant bit becomes the most significant bit, second least-significant bit becomes second most-significant bit, etc.

Examples

let n = 0x12345678usize;
let m = n.reverse_bits();

assert_eq!(m, 0x1e6a2c48);
assert_eq!(0, 0usize.reverse_bits());

pub const fn from_be(x: Self) -> Self

Converts an integer from big endian to the target’s endianness.

On big endian this is a no-op. On little endian the bytes are swapped.

Examples

let n = 0x1Ausize;

if cfg!(target_endian = "big") {
    assert_eq!(usize::from_be(n), n)
} else {
    assert_eq!(usize::from_be(n), n.swap_bytes())
}

pub const fn from_le(x: Self) -> Self

Converts an integer from little endian to the target’s endianness.

On little endian this is a no-op. On big endian the bytes are swapped.

Examples

let n = 0x1Ausize;

if cfg!(target_endian = "little") {
    assert_eq!(usize::from_le(n), n)
} else {
    assert_eq!(usize::from_le(n), n.swap_bytes())
}

pub const fn to_be(self) -> Self

Converts self to big endian from the target’s endianness.

On big endian this is a no-op. On little endian the bytes are swapped.

Examples

let n = 0x1Ausize;

if cfg!(target_endian = "big") {
    assert_eq!(n.to_be(), n)
} else {
    assert_eq!(n.to_be(), n.swap_bytes())
}

pub const fn to_le(self) -> Self

Converts self to little endian from the target’s endianness.

On little endian this is a no-op. On big endian the bytes are swapped.

Examples

let n = 0x1Ausize;

if cfg!(target_endian = "little") {
    assert_eq!(n.to_le(), n)
} else {
    assert_eq!(n.to_le(), n.swap_bytes())
}

pub const fn checked_add(self, rhs: Self) -> Option<Self>

Checked integer addition. Computes self + rhs, returning None if overflow occurred.

Examples

assert_eq!((usize::MAX - 2).checked_add(1), Some(usize::MAX - 1));
assert_eq!((usize::MAX - 2).checked_add(3), None);

pub const fn strict_add(self, rhs: Self) -> Self

Strict integer addition. Computes self + rhs, panicking if overflow occurred.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!((usize::MAX - 2).strict_add(1), usize::MAX - 1);

The following panics because of overflow:

let _ = (usize::MAX - 2).strict_add(3);

pub const unsafe fn unchecked_add(self, rhs: Self) -> Self

Unchecked integer addition. Computes self + rhs, assuming overflow cannot occur.

Calling x.unchecked_add(y) is semantically equivalent to calling x.checked_add(y).unwrap_unchecked().

If you’re just trying to avoid the panic in debug mode, then do not use this. Instead, you’re looking for wrapping_add.

Safety

This results in undefined behavior when self + rhs > usize::MAX or self + rhs < usize::MIN, i.e. when checked_add would return None.

pub const fn checked_add_signed(self, rhs: isize) -> Option<Self>

Checked addition with a signed integer. Computes self + rhs, returning None if overflow occurred.

Examples

assert_eq!(1usize.checked_add_signed(2), Some(3));
assert_eq!(1usize.checked_add_signed(-2), None);
assert_eq!((usize::MAX - 2).checked_add_signed(3), None);

pub const fn strict_add_signed(self, rhs: isize) -> Self

Strict addition with a signed integer. Computes self + rhs, panicking if overflow occurred.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!(1usize.strict_add_signed(2), 3);

The following panic because of overflow:

let _ = 1usize.strict_add_signed(-2);

let _ = (usize::MAX - 2).strict_add_signed(3);

pub const fn checked_sub(self, rhs: Self) -> Option<Self>

Checked integer subtraction. Computes self - rhs, returning None if overflow occurred.

Examples

assert_eq!(1usize.checked_sub(1), Some(0));
assert_eq!(0usize.checked_sub(1), None);

pub const fn strict_sub(self, rhs: Self) -> Self

Strict integer subtraction. Computes self - rhs, panicking if overflow occurred.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!(1usize.strict_sub(1), 0);

The following panics because of overflow:

let _ = 0usize.strict_sub(1);

pub const unsafe fn unchecked_sub(self, rhs: Self) -> Self

Unchecked integer subtraction. Computes self - rhs, assuming overflow cannot occur.

Calling x.unchecked_sub(y) is semantically equivalent to calling x.checked_sub(y).unwrap_unchecked().

If you’re just trying to avoid the panic in debug mode, then do not use this. Instead, you’re looking for wrapping_sub.

If you find yourself writing code like this:

if foo >= bar {
    // SAFETY: just checked it will not overflow
    let diff = unsafe { foo.unchecked_sub(bar) };
    // ... use diff ...
}

Consider changing it to

if let Some(diff) = foo.checked_sub(bar) {
    // ... use diff ...
}

As that does exactly the same thing – including telling the optimizer that the subtraction cannot overflow – but avoids needing unsafe.

Safety

This results in undefined behavior when self - rhs > usize::MAX or self - rhs < usize::MIN, i.e. when checked_sub would return None.

pub const fn checked_sub_signed(self, rhs: isize) -> Option<Self>

Checked subtraction with a signed integer. Computes self - rhs, returning None if overflow occurred.

Examples

assert_eq!(1usize.checked_sub_signed(2), None);
assert_eq!(1usize.checked_sub_signed(-2), Some(3));
assert_eq!((usize::MAX - 2).checked_sub_signed(-4), None);

pub const fn strict_sub_signed(self, rhs: isize) -> Self

Strict subtraction with a signed integer. Computes self - rhs, panicking if overflow occurred.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!(3usize.strict_sub_signed(2), 1);

The following panic because of overflow:

let _ = 1usize.strict_sub_signed(2);

let _ = (usize::MAX).strict_sub_signed(-1);

pub const fn checked_signed_diff(self, rhs: Self) -> Option<isize>

Checked integer subtraction. Computes self - rhs and checks if the result fits into an isize, returning None if overflow occurred.

Examples

assert_eq!(10usize.checked_signed_diff(2), Some(8));
assert_eq!(2usize.checked_signed_diff(10), Some(-8));
assert_eq!(usize::MAX.checked_signed_diff(isize::MAX as usize), None);
assert_eq!((isize::MAX as usize).checked_signed_diff(usize::MAX), Some(isize::MIN));
assert_eq!((isize::MAX as usize + 1).checked_signed_diff(0), None);
assert_eq!(usize::MAX.checked_signed_diff(usize::MAX), Some(0));

pub const fn checked_mul(self, rhs: Self) -> Option<Self>

Checked integer multiplication. Computes self * rhs, returning None if overflow occurred.

Examples

assert_eq!(5usize.checked_mul(1), Some(5));
assert_eq!(usize::MAX.checked_mul(2), None);

pub const fn strict_mul(self, rhs: Self) -> Self

Strict integer multiplication. Computes self * rhs, panicking if overflow occurred.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!(5usize.strict_mul(1), 5);

The following panics because of overflow:

let _ = usize::MAX.strict_mul(2);

pub const unsafe fn unchecked_mul(self, rhs: Self) -> Self

Unchecked integer multiplication. Computes self * rhs, assuming overflow cannot occur.

Calling x.unchecked_mul(y) is semantically equivalent to calling x.checked_mul(y).unwrap_unchecked().

If you’re just trying to avoid the panic in debug mode, then do not use this. Instead, you’re looking for wrapping_mul.

Safety

This results in undefined behavior when self * rhs > usize::MAX or self * rhs < usize::MIN, i.e. when checked_mul would return None.

pub const fn checked_div(self, rhs: Self) -> Option<Self>

Checked integer division. Computes self / rhs, returning None if rhs == 0.

Examples

assert_eq!(128usize.checked_div(2), Some(64));
assert_eq!(1usize.checked_div(0), None);

pub const fn strict_div(self, rhs: Self) -> Self

Strict integer division. Computes self / rhs.

Strict division on unsigned types is just normal division. There’s no way overflow could ever happen. This function exists so that all operations are accounted for in the strict operations.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(100usize.strict_div(10), 10);

The following panics because of division by zero:

let _ = (1usize).strict_div(0);

pub const fn checked_div_euclid(self, rhs: Self) -> Option<Self>

Checked Euclidean division. Computes self.div_euclid(rhs), returning None if rhs == 0.

Examples

assert_eq!(128usize.checked_div_euclid(2), Some(64));
assert_eq!(1usize.checked_div_euclid(0), None);

pub const fn strict_div_euclid(self, rhs: Self) -> Self

Strict Euclidean division. Computes self.div_euclid(rhs).

Strict division on unsigned types is just normal division. There’s no way overflow could ever happen. This function exists so that all operations are accounted for in the strict operations. Since, for the positive integers, all common definitions of division are equal, this is exactly equal to self.strict_div(rhs).

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(100usize.strict_div_euclid(10), 10);

The following panics because of division by zero:

let _ = (1usize).strict_div_euclid(0);

pub const fn checked_div_exact(self, rhs: Self) -> Option<Self>

🔬This is a nightly-only experimental API. (exact_div #139911)

Checked integer division without remainder. Computes self / rhs, returning None if rhs == 0 or if self % rhs != 0.

Examples

#![feature(exact_div)]
assert_eq!(64usize.checked_div_exact(2), Some(32));
assert_eq!(64usize.checked_div_exact(32), Some(2));
assert_eq!(64usize.checked_div_exact(0), None);
assert_eq!(65usize.checked_div_exact(2), None);

pub const fn div_exact(self, rhs: Self) -> Option<Self>

🔬This is a nightly-only experimental API. (exact_div #139911)

Integer division without remainder. Computes self / rhs, returning None if self % rhs != 0.

Panics

This function will panic if rhs == 0.

Examples

#![feature(exact_div)]
assert_eq!(64usize.div_exact(2), Some(32));
assert_eq!(64usize.div_exact(32), Some(2));
assert_eq!(65usize.div_exact(2), None);

pub const unsafe fn unchecked_div_exact(self, rhs: Self) -> Self

🔬This is a nightly-only experimental API. (exact_div #139911)

Unchecked integer division without remainder. Computes self / rhs.

Safety

This results in undefined behavior when rhs == 0 or self % rhs != 0, i.e. when checked_div_exact would return None.

pub const fn checked_rem(self, rhs: Self) -> Option<Self>

Checked integer remainder. Computes self % rhs, returning None if rhs == 0.

Examples

assert_eq!(5usize.checked_rem(2), Some(1));
assert_eq!(5usize.checked_rem(0), None);

pub const fn strict_rem(self, rhs: Self) -> Self

Strict integer remainder. Computes self % rhs.

Strict remainder calculation on unsigned types is just the regular remainder calculation. There’s no way overflow could ever happen. This function exists so that all operations are accounted for in the strict operations.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(100usize.strict_rem(10), 0);

The following panics because of division by zero:

let _ = 5usize.strict_rem(0);

pub const fn checked_rem_euclid(self, rhs: Self) -> Option<Self>

Checked Euclidean modulo. Computes self.rem_euclid(rhs), returning None if rhs == 0.

Examples

assert_eq!(5usize.checked_rem_euclid(2), Some(1));
assert_eq!(5usize.checked_rem_euclid(0), None);

pub const fn strict_rem_euclid(self, rhs: Self) -> Self

Strict Euclidean modulo. Computes self.rem_euclid(rhs).

Strict modulo calculation on unsigned types is just the regular remainder calculation. There’s no way overflow could ever happen. This function exists so that all operations are accounted for in the strict operations. Since, for the positive integers, all common definitions of division are equal, this is exactly equal to self.strict_rem(rhs).

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(100usize.strict_rem_euclid(10), 0);

The following panics because of division by zero:

let _ = 5usize.strict_rem_euclid(0);

pub const unsafe fn unchecked_disjoint_bitor(self, other: Self) -> Self

🔬This is a nightly-only experimental API. (disjoint_bitor #135758)

Same value as self | other, but UB if any bit position is set in both inputs.

This is a situational micro-optimization for places where you’d rather use addition on some platforms and bitwise or on other platforms, based on exactly which instructions combine better with whatever else you’re doing. Note that there’s no reason to bother using this for places where it’s clear from the operations involved that they can’t overlap. For example, if you’re combining u16s into a u32 with ((a as u32) << 16) | (b as u32), that’s fine, as the backend will know those sides of the | are disjoint without needing help.

Examples

#![feature(disjoint_bitor)]

// SAFETY: `1` and `4` have no bits in common.
unsafe {
    assert_eq!(1_usize.unchecked_disjoint_bitor(4), 5);
}

Safety

Requires that (self & other) == 0, otherwise it’s immediate UB.

Equivalently, requires that (self | other) == (self + other).

pub const fn ilog(self, base: Self) -> u32

Returns the logarithm of the number with respect to an arbitrary base, rounded down.

This method might not be optimized owing to implementation details; ilog2 can produce results more efficiently for base 2, and ilog10 can produce results more efficiently for base 10.

Panics

This function will panic if self is zero, or if base is less than 2.

Examples

assert_eq!(5usize.ilog(5), 1);

pub const fn ilog2(self) -> u32

Returns the base 2 logarithm of the number, rounded down.

Panics

This function will panic if self is zero.

Examples

assert_eq!(2usize.ilog2(), 1);

pub const fn ilog10(self) -> u32

Returns the base 10 logarithm of the number, rounded down.

Panics

This function will panic if self is zero.

Example

assert_eq!(10usize.ilog10(), 1);

pub const fn checked_ilog(self, base: Self) -> Option<u32>

Returns the logarithm of the number with respect to an arbitrary base, rounded down.

Returns None if the number is zero, or if the base is not at least 2.

This method might not be optimized owing to implementation details; checked_ilog2 can produce results more efficiently for base 2, and checked_ilog10 can produce results more efficiently for base 10.

Examples

assert_eq!(5usize.checked_ilog(5), Some(1));

pub const fn checked_ilog2(self) -> Option<u32>

Returns the base 2 logarithm of the number, rounded down.

Returns None if the number is zero.

Examples

assert_eq!(2usize.checked_ilog2(), Some(1));

pub const fn checked_ilog10(self) -> Option<u32>

Returns the base 10 logarithm of the number, rounded down.

Returns None if the number is zero.

Examples

assert_eq!(10usize.checked_ilog10(), Some(1));

pub const fn checked_neg(self) -> Option<Self>

Checked negation. Computes -self, returning None unless self == 0.

Note that negating any positive integer will overflow.

Examples

assert_eq!(0usize.checked_neg(), Some(0));
assert_eq!(1usize.checked_neg(), None);

pub const fn strict_neg(self) -> Self

Strict negation. Computes -self, panicking unless self == 0.

Note that negating any positive integer will overflow.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!(0usize.strict_neg(), 0);

The following panics because of overflow:

let _ = 1usize.strict_neg();

pub const fn checked_shl(self, rhs: u32) -> Option<Self>

Checked shift left. Computes self << rhs, returning None if rhs is larger than or equal to the number of bits in self.

Examples

assert_eq!(0x1usize.checked_shl(4), Some(0x10));
assert_eq!(0x10usize.checked_shl(129), None);
assert_eq!(0x10usize.checked_shl(31), Some(0));

pub const fn strict_shl(self, rhs: u32) -> Self

Strict shift left. Computes self << rhs, panicking if rhs is larger than or equal to the number of bits in self.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!(0x1usize.strict_shl(4), 0x10);

The following panics because of overflow:

let _ = 0x10usize.strict_shl(129);

pub const unsafe fn unchecked_shl(self, rhs: u32) -> Self

Unchecked shift left. Computes self << rhs, assuming that rhs is less than the number of bits in self.

Safety

This results in undefined behavior if rhs is larger than or equal to the number of bits in self, i.e. when checked_shl would return None.

pub const fn unbounded_shl(self, rhs: u32) -> usize

Unbounded shift left. Computes self << rhs, without bounding the value of rhs.

If rhs is larger or equal to the number of bits in self, the entire value is shifted out, and 0 is returned.

Examples

assert_eq!(0x1_usize.unbounded_shl(4), 0x10);
assert_eq!(0x1_usize.unbounded_shl(129), 0);
assert_eq!(0b101_usize.unbounded_shl(0), 0b101);
assert_eq!(0b101_usize.unbounded_shl(1), 0b1010);
assert_eq!(0b101_usize.unbounded_shl(2), 0b10100);
assert_eq!(42_usize.unbounded_shl(32), 0);
assert_eq!(42_usize.unbounded_shl(1).unbounded_shl(31), 0);

let start : usize = 13;
let mut running = start;
for i in 0..160 {
    // The unbounded shift left by i is the same as `<< 1` i times
    assert_eq!(running, start.unbounded_shl(i));
    // Which is not always the case for a wrapping shift
    assert_eq!(running == start.wrapping_shl(i), i < 32);

    running <<= 1;
}

pub const fn shl_exact(self, rhs: u32) -> Option<usize>

🔬This is a nightly-only experimental API. (exact_bitshifts #144336)

Exact shift left. Computes self << rhs as long as it can be reversed losslessly.

Returns None if any non-zero bits would be shifted out or if rhs >= usize::BITS. Otherwise, returns Some(self << rhs).

Examples

#![feature(exact_bitshifts)]

assert_eq!(0x1usize.shl_exact(4), Some(0x10));
assert_eq!(0x1usize.shl_exact(129), None);

pub const unsafe fn unchecked_shl_exact(self, rhs: u32) -> usize

🔬This is a nightly-only experimental API. (exact_bitshifts #144336)

Unchecked exact shift left. Computes self << rhs, assuming the operation can be losslessly reversed rhs cannot be larger than usize::BITS.

Safety

This results in undefined behavior when rhs > self.leading_zeros() || rhs >= usize::BITS i.e. when usize::shl_exact would return None.

pub const fn checked_shr(self, rhs: u32) -> Option<Self>

Checked shift right. Computes self >> rhs, returning None if rhs is larger than or equal to the number of bits in self.

Examples

assert_eq!(0x10usize.checked_shr(4), Some(0x1));
assert_eq!(0x10usize.checked_shr(129), None);

pub const fn strict_shr(self, rhs: u32) -> Self

Strict shift right. Computes self >> rhs, panicking if rhs is larger than or equal to the number of bits in self.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!(0x10usize.strict_shr(4), 0x1);

The following panics because of overflow:

let _ = 0x10usize.strict_shr(129);

pub const unsafe fn unchecked_shr(self, rhs: u32) -> Self

Unchecked shift right. Computes self >> rhs, assuming that rhs is less than the number of bits in self.

Safety

This results in undefined behavior if rhs is larger than or equal to the number of bits in self, i.e. when checked_shr would return None.

pub const fn unbounded_shr(self, rhs: u32) -> usize

Unbounded shift right. Computes self >> rhs, without bounding the value of rhs.

If rhs is larger or equal to the number of bits in self, the entire value is shifted out, and 0 is returned.

Examples

assert_eq!(0x10_usize.unbounded_shr(4), 0x1);
assert_eq!(0x10_usize.unbounded_shr(129), 0);
assert_eq!(0b1010_usize.unbounded_shr(0), 0b1010);
assert_eq!(0b1010_usize.unbounded_shr(1), 0b101);
assert_eq!(0b1010_usize.unbounded_shr(2), 0b10);
assert_eq!(42_usize.unbounded_shr(32), 0);
assert_eq!(42_usize.unbounded_shr(1).unbounded_shr(31), 0);

let start = usize::rotate_right(13, 4);
let mut running = start;
for i in 0..160 {
    // The unbounded shift right by i is the same as `>> 1` i times
    assert_eq!(running, start.unbounded_shr(i));
    // Which is not always the case for a wrapping shift
    assert_eq!(running == start.wrapping_shr(i), i < 32);

    running >>= 1;
}

pub const fn shr_exact(self, rhs: u32) -> Option<usize>

🔬This is a nightly-only experimental API. (exact_bitshifts #144336)

Exact shift right. Computes self >> rhs as long as it can be reversed losslessly.

Returns None if any non-zero bits would be shifted out or if rhs >= usize::BITS. Otherwise, returns Some(self >> rhs).

Examples

#![feature(exact_bitshifts)]

assert_eq!(0x10usize.shr_exact(4), Some(0x1));
assert_eq!(0x10usize.shr_exact(5), None);

pub const unsafe fn unchecked_shr_exact(self, rhs: u32) -> usize

🔬This is a nightly-only experimental API. (exact_bitshifts #144336)

Unchecked exact shift right. Computes self >> rhs, assuming the operation can be losslessly reversed and rhs cannot be larger than usize::BITS.

Safety

This results in undefined behavior when rhs > self.trailing_zeros() || rhs >= usize::BITS i.e. when usize::shr_exact would return None.

pub const fn checked_pow(self, exp: u32) -> Option<Self>

Checked exponentiation. Computes self.pow(exp), returning None if overflow occurred.

Examples

assert_eq!(2usize.checked_pow(5), Some(32));
assert_eq!(0_usize.checked_pow(0), Some(1));
assert_eq!(usize::MAX.checked_pow(2), None);

pub const fn strict_pow(self, exp: u32) -> Self

Strict exponentiation. Computes self.pow(exp), panicking if overflow occurred.

Panics

Overflow behavior

This function will always panic on overflow, regardless of whether overflow checks are enabled.

Examples

assert_eq!(2usize.strict_pow(5), 32);
assert_eq!(0_usize.strict_pow(0), 1);

The following panics because of overflow:

let _ = usize::MAX.strict_pow(2);

pub const fn saturating_add(self, rhs: Self) -> Self

Saturating integer addition. Computes self + rhs, saturating at the numeric bounds instead of overflowing.

Examples

assert_eq!(100usize.saturating_add(1), 101);
assert_eq!(usize::MAX.saturating_add(127), usize::MAX);

pub const fn saturating_add_signed(self, rhs: isize) -> Self

Saturating addition with a signed integer. Computes self + rhs, saturating at the numeric bounds instead of overflowing.

Examples

assert_eq!(1usize.saturating_add_signed(2), 3);
assert_eq!(1usize.saturating_add_signed(-2), 0);
assert_eq!((usize::MAX - 2).saturating_add_signed(4), usize::MAX);

pub const fn saturating_sub(self, rhs: Self) -> Self

Saturating integer subtraction. Computes self - rhs, saturating at the numeric bounds instead of overflowing.

Examples

assert_eq!(100usize.saturating_sub(27), 73);
assert_eq!(13usize.saturating_sub(127), 0);

pub const fn saturating_sub_signed(self, rhs: isize) -> Self

Saturating integer subtraction. Computes self - rhs, saturating at the numeric bounds instead of overflowing.

Examples

assert_eq!(1usize.saturating_sub_signed(2), 0);
assert_eq!(1usize.saturating_sub_signed(-2), 3);
assert_eq!((usize::MAX - 2).saturating_sub_signed(-4), usize::MAX);

pub const fn saturating_mul(self, rhs: Self) -> Self

Saturating integer multiplication. Computes self * rhs, saturating at the numeric bounds instead of overflowing.

Examples

assert_eq!(2usize.saturating_mul(10), 20);
assert_eq!((usize::MAX).saturating_mul(10), usize::MAX);

pub const fn saturating_div(self, rhs: Self) -> Self

Saturating integer division. Computes self / rhs, saturating at the numeric bounds instead of overflowing.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(5usize.saturating_div(2), 2);

pub const fn saturating_pow(self, exp: u32) -> Self

Saturating integer exponentiation. Computes self.pow(exp), saturating at the numeric bounds instead of overflowing.

Examples

assert_eq!(4usize.saturating_pow(3), 64);
assert_eq!(0_usize.saturating_pow(0), 1);
assert_eq!(usize::MAX.saturating_pow(2), usize::MAX);

pub const fn wrapping_add(self, rhs: Self) -> Self

Wrapping (modular) addition. Computes self + rhs, wrapping around at the boundary of the type.

Examples

assert_eq!(200usize.wrapping_add(55), 255);
assert_eq!(200usize.wrapping_add(usize::MAX), 199);

pub const fn wrapping_add_signed(self, rhs: isize) -> Self

Wrapping (modular) addition with a signed integer. Computes self + rhs, wrapping around at the boundary of the type.

Examples

assert_eq!(1usize.wrapping_add_signed(2), 3);
assert_eq!(1usize.wrapping_add_signed(-2), usize::MAX);
assert_eq!((usize::MAX - 2).wrapping_add_signed(4), 1);

pub const fn wrapping_sub(self, rhs: Self) -> Self

Wrapping (modular) subtraction. Computes self - rhs, wrapping around at the boundary of the type.

Examples

assert_eq!(100usize.wrapping_sub(100), 0);
assert_eq!(100usize.wrapping_sub(usize::MAX), 101);

pub const fn wrapping_sub_signed(self, rhs: isize) -> Self

Wrapping (modular) subtraction with a signed integer. Computes self - rhs, wrapping around at the boundary of the type.

Examples

assert_eq!(1usize.wrapping_sub_signed(2), usize::MAX);
assert_eq!(1usize.wrapping_sub_signed(-2), 3);
assert_eq!((usize::MAX - 2).wrapping_sub_signed(-4), 1);

pub const fn wrapping_mul(self, rhs: Self) -> Self

Wrapping (modular) multiplication. Computes self * rhs, wrapping around at the boundary of the type.

Examples

Please note that this example is shared among integer types, which is why u8 is used.

assert_eq!(10u8.wrapping_mul(12), 120);
assert_eq!(25u8.wrapping_mul(12), 44);

pub const fn wrapping_div(self, rhs: Self) -> Self

Wrapping (modular) division. Computes self / rhs.

Wrapped division on unsigned types is just normal division. There’s no way wrapping could ever happen. This function exists so that all operations are accounted for in the wrapping operations.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(100usize.wrapping_div(10), 10);

pub const fn wrapping_div_euclid(self, rhs: Self) -> Self

Wrapping Euclidean division. Computes self.div_euclid(rhs).

Wrapped division on unsigned types is just normal division. There’s no way wrapping could ever happen. This function exists so that all operations are accounted for in the wrapping operations. Since, for the positive integers, all common definitions of division are equal, this is exactly equal to self.wrapping_div(rhs).

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(100usize.wrapping_div_euclid(10), 10);

pub const fn wrapping_rem(self, rhs: Self) -> Self

Wrapping (modular) remainder. Computes self % rhs.

Wrapped remainder calculation on unsigned types is just the regular remainder calculation. There’s no way wrapping could ever happen. This function exists so that all operations are accounted for in the wrapping operations.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(100usize.wrapping_rem(10), 0);

pub const fn wrapping_rem_euclid(self, rhs: Self) -> Self

Wrapping Euclidean modulo. Computes self.rem_euclid(rhs).

Wrapped modulo calculation on unsigned types is just the regular remainder calculation. There’s no way wrapping could ever happen. This function exists so that all operations are accounted for in the wrapping operations. Since, for the positive integers, all common definitions of division are equal, this is exactly equal to self.wrapping_rem(rhs).

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(100usize.wrapping_rem_euclid(10), 0);

pub const fn wrapping_neg(self) -> Self

Wrapping (modular) negation. Computes -self, wrapping around at the boundary of the type.

Since unsigned types do not have negative equivalents all applications of this function will wrap (except for -0). For values smaller than the corresponding signed type’s maximum the result is the same as casting the corresponding signed value. Any larger values are equivalent to MAX + 1 - (val - MAX - 1) where MAX is the corresponding signed type’s maximum.

Examples

assert_eq!(0_usize.wrapping_neg(), 0);
assert_eq!(usize::MAX.wrapping_neg(), 1);
assert_eq!(13_usize.wrapping_neg(), (!13) + 1);
assert_eq!(42_usize.wrapping_neg(), !(42 - 1));

pub const fn wrapping_shl(self, rhs: u32) -> Self

Panic-free bitwise shift-left; yields self << mask(rhs), where mask removes any high-order bits of rhs that would cause the shift to exceed the bitwidth of the type.

Beware that, unlike most other wrapping_* methods on integers, this does not give the same result as doing the shift in infinite precision then truncating as needed. The behaviour matches what shift instructions do on many processors, and is what the << operator does when overflow checks are disabled, but numerically it’s weird. Consider, instead, using Self::unbounded_shl which has nicer behaviour.

Note that this is not the same as a rotate-left; the RHS of a wrapping shift-left is restricted to the range of the type, rather than the bits shifted out of the LHS being returned to the other end. The primitive integer types all implement a rotate_left function, which may be what you want instead.

Examples

assert_eq!(1_usize.wrapping_shl(7), 128);
assert_eq!(0b101_usize.wrapping_shl(0), 0b101);
assert_eq!(0b101_usize.wrapping_shl(1), 0b1010);
assert_eq!(0b101_usize.wrapping_shl(2), 0b10100);
assert_eq!(usize::MAX.wrapping_shl(2), usize::MAX - 3);
assert_eq!(42_usize.wrapping_shl(32), 42);
assert_eq!(42_usize.wrapping_shl(1).wrapping_shl(31), 0);
assert_eq!(1_usize.wrapping_shl(128), 1);
assert_eq!(5_usize.wrapping_shl(1025), 10);

pub const fn wrapping_shr(self, rhs: u32) -> Self

Panic-free bitwise shift-right; yields self >> mask(rhs), where mask removes any high-order bits of rhs that would cause the shift to exceed the bitwidth of the type.

Beware that, unlike most other wrapping_* methods on integers, this does not give the same result as doing the shift in infinite precision then truncating as needed. The behaviour matches what shift instructions do on many processors, and is what the >> operator does when overflow checks are disabled, but numerically it’s weird. Consider, instead, using Self::unbounded_shr which has nicer behaviour.

Note that this is not the same as a rotate-right; the RHS of a wrapping shift-right is restricted to the range of the type, rather than the bits shifted out of the LHS being returned to the other end. The primitive integer types all implement a rotate_right function, which may be what you want instead.

Examples

assert_eq!(128_usize.wrapping_shr(7), 1);
assert_eq!(0b1010_usize.wrapping_shr(0), 0b1010);
assert_eq!(0b1010_usize.wrapping_shr(1), 0b101);
assert_eq!(0b1010_usize.wrapping_shr(2), 0b10);
assert_eq!(usize::MAX.wrapping_shr(1), isize::MAX.cast_unsigned());
assert_eq!(42_usize.wrapping_shr(32), 42);
assert_eq!(42_usize.wrapping_shr(1).wrapping_shr(31), 0);
assert_eq!(128_usize.wrapping_shr(128), 128);
assert_eq!(10_usize.wrapping_shr(1025), 5);

pub const fn wrapping_pow(self, exp: u32) -> Self

Wrapping (modular) exponentiation. Computes self.pow(exp), wrapping around at the boundary of the type.

Examples

assert_eq!(3usize.wrapping_pow(5), 243);
assert_eq!(3u8.wrapping_pow(6), 217);
assert_eq!(0_usize.wrapping_pow(0), 1);

pub const fn overflowing_add(self, rhs: Self) -> (Self, bool)

Calculates self + rhs.

Returns a tuple of the addition along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.

Examples

assert_eq!(5usize.overflowing_add(2), (7, false));
assert_eq!(usize::MAX.overflowing_add(1), (0, true));

pub fn carrying_add(self, rhs: Self, carry: bool) -> (Self, bool)

Calculates self + rhs + carry and returns a tuple containing the sum and the output carry (in that order).

Performs “ternary addition” of two integer operands and a carry-in bit, and returns an output integer and a carry-out bit. This allows chaining together multiple additions to create a wider addition, and can be useful for bignum addition.

This can be thought of as a 32-bit “full adder”, in the electronics sense.

If the input carry is false, this method is equivalent to overflowing_add, and the output carry is equal to the overflow flag. Note that although carry and overflow flags are similar for unsigned integers, they are different for signed integers.

Examples

//    3  MAX    (a = 3 × 2^32 + 2^32 - 1)
// +  5    7    (b = 5 × 2^32 + 7)
// ---------
//    9    6    (sum = 9 × 2^32 + 6)

let (a1, a0): (usize, usize) = (3, usize::MAX);
let (b1, b0): (usize, usize) = (5, 7);
let carry0 = false;

let (sum0, carry1) = a0.carrying_add(b0, carry0);
assert_eq!(carry1, true);
let (sum1, carry2) = a1.carrying_add(b1, carry1);
assert_eq!(carry2, false);

assert_eq!((sum1, sum0), (9, 6));

pub const fn overflowing_add_signed(self, rhs: isize) -> (Self, bool)

Calculates self + rhs with a signed rhs.

Returns a tuple of the addition along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.

Examples

assert_eq!(1usize.overflowing_add_signed(2), (3, false));
assert_eq!(1usize.overflowing_add_signed(-2), (usize::MAX, true));
assert_eq!((usize::MAX - 2).overflowing_add_signed(4), (1, true));

pub const fn overflowing_sub(self, rhs: Self) -> (Self, bool)

Calculates self - rhs.

Returns a tuple of the subtraction along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.

Examples

assert_eq!(5usize.overflowing_sub(2), (3, false));
assert_eq!(0usize.overflowing_sub(1), (usize::MAX, true));

pub fn borrowing_sub(self, rhs: Self, borrow: bool) -> (Self, bool)

Calculates self − rhs − borrow and returns a tuple containing the difference and the output borrow.

Performs “ternary subtraction” by subtracting both an integer operand and a borrow-in bit from self, and returns an output integer and a borrow-out bit. This allows chaining together multiple subtractions to create a wider subtraction, and can be useful for bignum subtraction.

Examples

//    9    6    (a = 9 × 2^32 + 6)
// -  5    7    (b = 5 × 2^32 + 7)
// ---------
//    3  MAX    (diff = 3 × 2^32 + 2^32 - 1)

let (a1, a0): (usize, usize) = (9, 6);
let (b1, b0): (usize, usize) = (5, 7);
let borrow0 = false;

let (diff0, borrow1) = a0.borrowing_sub(b0, borrow0);
assert_eq!(borrow1, true);
let (diff1, borrow2) = a1.borrowing_sub(b1, borrow1);
assert_eq!(borrow2, false);

assert_eq!((diff1, diff0), (3, usize::MAX));

pub const fn overflowing_sub_signed(self, rhs: isize) -> (Self, bool)

Calculates self - rhs with a signed rhs

Returns a tuple of the subtraction along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.

Examples

assert_eq!(1usize.overflowing_sub_signed(2), (usize::MAX, true));
assert_eq!(1usize.overflowing_sub_signed(-2), (3, false));
assert_eq!((usize::MAX - 2).overflowing_sub_signed(-4), (1, true));

pub const fn abs_diff(self, other: Self) -> Self

Computes the absolute difference between self and other.

Examples

assert_eq!(100usize.abs_diff(80), 20usize);
assert_eq!(100usize.abs_diff(110), 10usize);

pub const fn overflowing_mul(self, rhs: Self) -> (Self, bool)

Calculates the multiplication of self and rhs.

Returns a tuple of the multiplication along with a boolean indicating whether an arithmetic overflow would occur. If an overflow would have occurred then the wrapped value is returned.

If you want the value of the overflow, rather than just whether an overflow occurred, see Self::carrying_mul.

Examples

Please note that this example is shared among integer types, which is why u32 is used.

assert_eq!(5u32.overflowing_mul(2), (10, false));
assert_eq!(1_000_000_000u32.overflowing_mul(10), (1410065408, true));

pub const fn widening_mul(self, rhs: Self) -> (Self, Self)

🔬This is a nightly-only experimental API. (widening_mul #152016)

Calculates the complete double-width product self * rhs.

This returns the low-order (wrapping) bits and the high-order (overflow) bits of the result as two separate values, in that order. As such, a.widening_mul(b).0 produces the same result as a.wrapping_mul(b).

If you also need to add a value and carry to the wide result, then you want Self::carrying_mul_add instead.

If you also need to add a carry to the wide result, then you want Self::carrying_mul instead.

If you just want to know whether the multiplication overflowed, then you want Self::overflowing_mul instead.

Examples

#![feature(widening_mul)]
assert_eq!(5_usize.widening_mul(7), (35, 0));
assert_eq!(usize::MAX.widening_mul(usize::MAX), (1, usize::MAX - 1));

Compared to other *_mul methods:

#![feature(widening_mul)]
assert_eq!(usize::widening_mul(1 << 31, 6), (0, 3));
assert_eq!(usize::overflowing_mul(1 << 31, 6), (0, true));
assert_eq!(usize::wrapping_mul(1 << 31, 6), 0);
assert_eq!(usize::checked_mul(1 << 31, 6), None);

Please note that this example is shared among integer types, which is why u32 is used.

#![feature(widening_mul)]
assert_eq!(5u32.widening_mul(2), (10, 0));
assert_eq!(1_000_000_000u32.widening_mul(10), (1410065408, 2));

pub fn carrying_mul(self, rhs: Self, carry: Self) -> (Self, Self)

Calculates the “full multiplication” self * rhs + carry without the possibility to overflow.

This returns the low-order (wrapping) bits and the high-order (overflow) bits of the result as two separate values, in that order.

Performs “long multiplication” which takes in an extra amount to add, and may return an additional amount of overflow. This allows for chaining together multiple multiplications to create “big integers” which represent larger values.

If you also need to add a value, then use Self::carrying_mul_add.

Examples

Please note that this example is shared among integer types, which is why u32 is used.

assert_eq!(5u32.carrying_mul(2, 0), (10, 0));
assert_eq!(5u32.carrying_mul(2, 10), (20, 0));
assert_eq!(1_000_000_000u32.carrying_mul(10, 0), (1410065408, 2));
assert_eq!(1_000_000_000u32.carrying_mul(10, 10), (1410065418, 2));
assert_eq!(usize::MAX.carrying_mul(usize::MAX, usize::MAX), (0, usize::MAX));

This is the core operation needed for scalar multiplication when implementing it for wider-than-native types.

fn scalar_mul_eq(little_endian_digits: &mut Vec<u16>, multiplicand: u16) {
    let mut carry = 0;
    for d in little_endian_digits.iter_mut() {
        (*d, carry) = d.carrying_mul(multiplicand, carry);
    }
    if carry != 0 {
        little_endian_digits.push(carry);
    }
}

let mut v = vec![10, 20];
scalar_mul_eq(&mut v, 3);
assert_eq!(v, [30, 60]);

assert_eq!(0x87654321_u64 * 0xFEED, 0x86D3D159E38D);
let mut v = vec![0x4321, 0x8765];
scalar_mul_eq(&mut v, 0xFEED);
assert_eq!(v, [0xE38D, 0xD159, 0x86D3]);

If carry is zero, this is similar to overflowing_mul, except that it gives the value of the overflow instead of just whether one happened:

#![feature(const_unsigned_bigint_helpers)]
let r = u8::carrying_mul(7, 13, 0);
assert_eq!((r.0, r.1 != 0), u8::overflowing_mul(7, 13));
let r = u8::carrying_mul(13, 42, 0);
assert_eq!((r.0, r.1 != 0), u8::overflowing_mul(13, 42));

The value of the first field in the returned tuple matches what you’d get by combining the wrapping_mul and wrapping_add methods:

#![feature(const_unsigned_bigint_helpers)]
assert_eq!(
    789_u16.carrying_mul(456, 123).0,
    789_u16.wrapping_mul(456).wrapping_add(123),
);

pub fn carrying_mul_add(self, rhs: Self, carry: Self, add: Self) -> (Self, Self)

Calculates the “full multiplication” self * rhs + carry + add.

This returns the low-order (wrapping) bits and the high-order (overflow) bits of the result as two separate values, in that order.

This cannot overflow, as the double-width result has exactly enough space for the largest possible result. This is equivalent to how, in decimal, 9 × 9 + 9 + 9 = 81 + 18 = 99 = 9×10⁰ + 9×10¹ = 10² - 1.

Performs “long multiplication” which takes in an extra amount to add, and may return an additional amount of overflow. This allows for chaining together multiple multiplications to create “big integers” which represent larger values.

If you don’t need the add part, then you can use Self::carrying_mul instead.

Examples

Please note that this example is shared between integer types, which explains why u32 is used here.

assert_eq!(5u32.carrying_mul_add(2, 0, 0), (10, 0));
assert_eq!(5u32.carrying_mul_add(2, 10, 10), (30, 0));
assert_eq!(1_000_000_000u32.carrying_mul_add(10, 0, 0), (1410065408, 2));
assert_eq!(1_000_000_000u32.carrying_mul_add(10, 10, 10), (1410065428, 2));
assert_eq!(usize::MAX.carrying_mul_add(usize::MAX, usize::MAX, usize::MAX), (usize::MAX, usize::MAX));

This is the core per-digit operation for “grade school” O(n²) multiplication.

Please note that this example is shared between integer types, using u8 for simplicity of the demonstration.

fn quadratic_mul<const N: usize>(a: [u8; N], b: [u8; N]) -> [u8; N] {
    let mut out = [0; N];
    for j in 0..N {
        let mut carry = 0;
        for i in 0..(N - j) {
            (out[j + i], carry) = u8::carrying_mul_add(a[i], b[j], out[j + i], carry);
        }
    }
    out
}

// -1 * -1 == 1
assert_eq!(quadratic_mul([0xFF; 3], [0xFF; 3]), [1, 0, 0]);

assert_eq!(u32::wrapping_mul(0x9e3779b9, 0x7f4a7c15), 0xcffc982d);
assert_eq!(
    quadratic_mul(u32::to_le_bytes(0x9e3779b9), u32::to_le_bytes(0x7f4a7c15)),
    u32::to_le_bytes(0xcffc982d)
);

pub const fn overflowing_div(self, rhs: Self) -> (Self, bool)

Calculates the divisor when self is divided by rhs.

Returns a tuple of the divisor along with a boolean indicating whether an arithmetic overflow would occur. Note that for unsigned integers overflow never occurs, so the second value is always false.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(5usize.overflowing_div(2), (2, false));

pub const fn overflowing_div_euclid(self, rhs: Self) -> (Self, bool)

Calculates the quotient of Euclidean division self.div_euclid(rhs).

Returns a tuple of the divisor along with a boolean indicating whether an arithmetic overflow would occur. Note that for unsigned integers overflow never occurs, so the second value is always false. Since, for the positive integers, all common definitions of division are equal, this is exactly equal to self.overflowing_div(rhs).

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(5usize.overflowing_div_euclid(2), (2, false));

pub const fn overflowing_rem(self, rhs: Self) -> (Self, bool)

Calculates the remainder when self is divided by rhs.

Returns a tuple of the remainder after dividing along with a boolean indicating whether an arithmetic overflow would occur. Note that for unsigned integers overflow never occurs, so the second value is always false.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(5usize.overflowing_rem(2), (1, false));

pub const fn overflowing_rem_euclid(self, rhs: Self) -> (Self, bool)

Calculates the remainder self.rem_euclid(rhs) as if by Euclidean division.

Returns a tuple of the modulo after dividing along with a boolean indicating whether an arithmetic overflow would occur. Note that for unsigned integers overflow never occurs, so the second value is always false. Since, for the positive integers, all common definitions of division are equal, this operation is exactly equal to self.overflowing_rem(rhs).

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(5usize.overflowing_rem_euclid(2), (1, false));

pub const fn overflowing_neg(self) -> (Self, bool)

Negates self in an overflowing fashion.

Returns !self + 1 using wrapping operations to return the value that represents the negation of this unsigned value. Note that for positive unsigned values overflow always occurs, but negating 0 does not overflow.

Examples

assert_eq!(0usize.overflowing_neg(), (0, false));
assert_eq!(2usize.overflowing_neg(), (-2i32 as usize, true));

pub const fn overflowing_shl(self, rhs: u32) -> (Self, bool)

Shifts self left by rhs bits.

Returns a tuple of the shifted version of self along with a boolean indicating whether the shift value was larger than or equal to the number of bits. If the shift value is too large, then value is masked (N-1) where N is the number of bits, and this value is then used to perform the shift.

Examples

assert_eq!(0x1usize.overflowing_shl(4), (0x10, false));
assert_eq!(0x1usize.overflowing_shl(132), (0x10, true));
assert_eq!(0x10usize.overflowing_shl(31), (0, false));

pub const fn overflowing_shr(self, rhs: u32) -> (Self, bool)

Shifts self right by rhs bits.

Returns a tuple of the shifted version of self along with a boolean indicating whether the shift value was larger than or equal to the number of bits. If the shift value is too large, then value is masked (N-1) where N is the number of bits, and this value is then used to perform the shift.

Examples

assert_eq!(0x10usize.overflowing_shr(4), (0x1, false));
assert_eq!(0x10usize.overflowing_shr(132), (0x1, true));

pub const fn overflowing_pow(self, exp: u32) -> (Self, bool)

Raises self to the power of exp, using exponentiation by squaring.

Returns a tuple of the exponentiation along with a bool indicating whether an overflow happened.

Examples

assert_eq!(3usize.overflowing_pow(5), (243, false));
assert_eq!(0_usize.overflowing_pow(0), (1, false));
assert_eq!(3u8.overflowing_pow(6), (217, true));

pub const fn pow(self, exp: u32) -> Self

Raises self to the power of exp, using exponentiation by squaring.

Examples

assert_eq!(2usize.pow(5), 32);
assert_eq!(0_usize.pow(0), 1);

pub const fn isqrt(self) -> Self

Returns the square root of the number, rounded down.

Examples

assert_eq!(10usize.isqrt(), 3);

pub const fn div_euclid(self, rhs: Self) -> Self

Performs Euclidean division.

Since, for the positive integers, all common definitions of division are equal, this is exactly equal to self / rhs.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(7usize.div_euclid(4), 1); // or any other integer type

pub const fn rem_euclid(self, rhs: Self) -> Self

Calculates the least remainder of self when divided by rhs.

Since, for the positive integers, all common definitions of division are equal, this is exactly equal to self % rhs.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(7usize.rem_euclid(4), 3); // or any other integer type

pub const fn div_floor(self, rhs: Self) -> Self

🔬This is a nightly-only experimental API. (int_roundings #88581)

Calculates the quotient of self and rhs, rounding the result towards negative infinity.

This is the same as performing self / rhs for all unsigned integers.

Panics

This function will panic if rhs is zero.

Examples

#![feature(int_roundings)]
assert_eq!(7_usize.div_floor(4), 1);

pub const fn div_ceil(self, rhs: Self) -> Self

Calculates the quotient of self and rhs, rounding the result towards positive infinity.

Panics

This function will panic if rhs is zero.

Examples

assert_eq!(7_usize.div_ceil(4), 2);

pub const fn next_multiple_of(self, rhs: Self) -> Self

Calculates the smallest value greater than or equal to self that is a multiple of rhs.

Panics

This function will panic if rhs is zero.

Overflow behavior

On overflow, this function will panic if overflow checks are enabled (default in debug mode) and wrap if overflow checks are disabled (default in release mode).

Examples

assert_eq!(16_usize.next_multiple_of(8), 16);
assert_eq!(23_usize.next_multiple_of(8), 24);

pub const fn checked_next_multiple_of(self, rhs: Self) -> Option<Self>

Calculates the smallest value greater than or equal to self that is a multiple of rhs. Returns None if rhs is zero or the operation would result in overflow.

Examples

assert_eq!(16_usize.checked_next_multiple_of(8), Some(16));
assert_eq!(23_usize.checked_next_multiple_of(8), Some(24));
assert_eq!(1_usize.checked_next_multiple_of(0), None);
assert_eq!(usize::MAX.checked_next_multiple_of(2), None);

pub const fn is_multiple_of(self, rhs: Self) -> bool

Returns true if self is an integer multiple of rhs, and false otherwise.

This function is equivalent to self % rhs == 0, except that it will not panic for rhs == 0. Instead, 0.is_multiple_of(0) == true, and for any non-zero n, n.is_multiple_of(0) == false.

Examples

assert!(6_usize.is_multiple_of(2));
assert!(!5_usize.is_multiple_of(2));

assert!(0_usize.is_multiple_of(0));
assert!(!6_usize.is_multiple_of(0));

pub const fn is_power_of_two(self) -> bool

Returns true if and only if self == 2^k for some unsigned integer k.

Examples

assert!(16usize.is_power_of_two());
assert!(!10usize.is_power_of_two());

pub const fn next_power_of_two(self) -> Self

Returns the smallest power of two greater than or equal to self.

When return value overflows (i.e., self > (1 << (N-1)) for type uN), it panics in debug mode and the return value is wrapped to 0 in release mode (the only situation in which this method can return 0).

Examples

assert_eq!(2usize.next_power_of_two(), 2);
assert_eq!(3usize.next_power_of_two(), 4);
assert_eq!(0usize.next_power_of_two(), 1);

pub const fn checked_next_power_of_two(self) -> Option<Self>

Returns the smallest power of two greater than or equal to self. If the next power of two is greater than the type’s maximum value, None is returned, otherwise the power of two is wrapped in Some.

Examples

assert_eq!(2usize.checked_next_power_of_two(), Some(2));
assert_eq!(3usize.checked_next_power_of_two(), Some(4));
assert_eq!(usize::MAX.checked_next_power_of_two(), None);

pub const fn wrapping_next_power_of_two(self) -> Self

🔬This is a nightly-only experimental API. (wrapping_next_power_of_two #32463)

Returns the smallest power of two greater than or equal to n. If the next power of two is greater than the type’s maximum value, the return value is wrapped to 0.

Examples

#![feature(wrapping_next_power_of_two)]

assert_eq!(2usize.wrapping_next_power_of_two(), 2);
assert_eq!(3usize.wrapping_next_power_of_two(), 4);
assert_eq!(usize::MAX.wrapping_next_power_of_two(), 0);

pub const fn to_be_bytes(self) -> [u8; 4]

Returns the memory representation of this integer as a byte array in big-endian (network) byte order.

Note: This function returns an array of length 2, 4 or 8 bytes depending on the target pointer size.

Examples

let bytes = 0x12345678usize.to_be_bytes();
assert_eq!(bytes, [0x12, 0x34, 0x56, 0x78]);

pub const fn to_le_bytes(self) -> [u8; 4]

Returns the memory representation of this integer as a byte array in little-endian byte order.

Note: This function returns an array of length 2, 4 or 8 bytes depending on the target pointer size.

Examples

let bytes = 0x12345678usize.to_le_bytes();
assert_eq!(bytes, [0x78, 0x56, 0x34, 0x12]);

pub const fn to_ne_bytes(self) -> [u8; 4]

Returns the memory representation of this integer as a byte array in native byte order.

As the target platform’s native endianness is used, portable code should use to_be_bytes or to_le_bytes, as appropriate, instead.

Note: This function returns an array of length 2, 4 or 8 bytes depending on the target pointer size.

Examples

let bytes = 0x12345678usize.to_ne_bytes();
assert_eq!(
    bytes,
    if cfg!(target_endian = "big") {
        [0x12, 0x34, 0x56, 0x78]
    } else {
        [0x78, 0x56, 0x34, 0x12]
    }
);

pub const fn from_be_bytes(bytes: [u8; 4]) -> Self

Creates a native endian integer value from its representation as a byte array in big endian.

Note: This function takes an array of length 2, 4 or 8 bytes depending on the target pointer size.

Examples

let value = usize::from_be_bytes([0x12, 0x34, 0x56, 0x78]);
assert_eq!(value, 0x12345678);

When starting from a slice rather than an array, fallible conversion APIs can be used:

fn read_be_usize(input: &mut &[u8]) -> usize {
    let (int_bytes, rest) = input.split_at(size_of::<usize>());
    *input = rest;
    usize::from_be_bytes(int_bytes.try_into().unwrap())
}

pub const fn from_le_bytes(bytes: [u8; 4]) -> Self

Creates a native endian integer value from its representation as a byte array in little endian.

Note: This function takes an array of length 2, 4 or 8 bytes depending on the target pointer size.

Examples

let value = usize::from_le_bytes([0x78, 0x56, 0x34, 0x12]);
assert_eq!(value, 0x12345678);

When starting from a slice rather than an array, fallible conversion APIs can be used:

fn read_le_usize(input: &mut &[u8]) -> usize {
    let (int_bytes, rest) = input.split_at(size_of::<usize>());
    *input = rest;
    usize::from_le_bytes(int_bytes.try_into().unwrap())
}

pub const fn from_ne_bytes(bytes: [u8; 4]) -> Self

Creates a native endian integer value from its memory representation as a byte array in native endianness.

As the target platform’s native endianness is used, portable code likely wants to use from_be_bytes or from_le_bytes, as appropriate instead.

Note: This function takes an array of length 2, 4 or 8 bytes depending on the target pointer size.

Examples

let value = usize::from_ne_bytes(if cfg!(target_endian = "big") {
    [0x12, 0x34, 0x56, 0x78]
} else {
    [0x78, 0x56, 0x34, 0x12]
});
assert_eq!(value, 0x12345678);

When starting from a slice rather than an array, fallible conversion APIs can be used:

fn read_ne_usize(input: &mut &[u8]) -> usize {
    let (int_bytes, rest) = input.split_at(size_of::<usize>());
    *input = rest;
    usize::from_ne_bytes(int_bytes.try_into().unwrap())
}

pub const fn min_value() -> Self

👎Deprecating in a future version: replaced by the MIN associated constant on this type

New code should prefer to use usize::MIN instead.

Returns the smallest value that can be represented by this integer type.

pub const fn max_value() -> Self

👎Deprecating in a future version: replaced by the MAX associated constant on this type

New code should prefer to use usize::MAX instead.

Returns the largest value that can be represented by this integer type.

pub const fn midpoint(self, rhs: usize) -> usize

Calculates the midpoint (average) between self and rhs.

midpoint(a, b) is (a + b) / 2 as if it were performed in a sufficiently-large unsigned integral type. This implies that the result is always rounded towards zero and that no overflow will ever occur.

Examples

assert_eq!(0usize.midpoint(4), 2);
assert_eq!(1usize.midpoint(4), 2);

pub const fn carrying_carryless_mul( self, rhs: Self, carry: Self, ) -> (Self, Self)

🔬This is a nightly-only experimental API. (uint_carryless_mul #152080)

Calculates the “full carryless multiplication” without the possibility to overflow.

This returns the low-order (wrapping) bits and the high-order (overflow) bits of the result as two separate values, in that order.

Examples

Please note that this example is shared among integer types, which is why u8 is used.

#![feature(uint_carryless_mul)]

assert_eq!(0b1000_0000u8.carrying_carryless_mul(0b1000_0000, 0b0000), (0, 0b0100_0000));
assert_eq!(0b1000_0000u8.carrying_carryless_mul(0b1000_0000, 0b1111), (0b1111, 0b0100_0000));
assert_eq!(usize::MAX.carrying_carryless_mul(usize::MAX, usize::MAX), (!(usize::MAX / 3), usize::MAX / 3));

impl usize

pub const fn from_str_radix( src: &str, radix: u32, ) -> Result<usize, ParseIntError>

Parses an integer from a string slice with digits in a given base.

The string is expected to be an optional + sign followed by only digits. Leading and trailing non-digit characters (including whitespace) represent an error. Underscores (which are accepted in Rust literals) also represent an error.

Digits are a subset of these characters, depending on radix:

• 0-9
• a-z
• A-Z

Panics

This function panics if radix is not in the range from 2 to 36.

See also

If the string to be parsed is in base 10 (decimal), from_str or str::parse can also be used.

Examples

assert_eq!(usize::from_str_radix("A", 16), Ok(10));

Trailing space returns error:

assert!(usize::from_str_radix("1 ", 10).is_err());

pub const fn from_ascii(src: &[u8]) -> Result<usize, ParseIntError>

🔬This is a nightly-only experimental API. (int_from_ascii #134821)

Parses an integer from an ASCII-byte slice with decimal digits.

The characters are expected to be an optional + sign followed by only digits. Leading and trailing non-digit characters (including whitespace) represent an error. Underscores (which are accepted in Rust literals) also represent an error.

Examples

#![feature(int_from_ascii)]

assert_eq!(usize::from_ascii(b"+10"), Ok(10));

Trailing space returns error:

assert!(usize::from_ascii(b"1 ").is_err());

pub const fn from_ascii_radix( src: &[u8], radix: u32, ) -> Result<usize, ParseIntError>

🔬This is a nightly-only experimental API. (int_from_ascii #134821)

Parses an integer from an ASCII-byte slice with digits in a given base.

The characters are expected to be an optional + sign followed by only digits. Leading and trailing non-digit characters (including whitespace) represent an error. Underscores (which are accepted in Rust literals) also represent an error.

Digits are a subset of these characters, depending on radix:

• 0-9
• a-z
• A-Z

Panics

This function panics if radix is not in the range from 2 to 36.

Examples

#![feature(int_from_ascii)]

assert_eq!(usize::from_ascii_radix(b"A", 16), Ok(10));

Trailing space returns error:

assert!(usize::from_ascii_radix(b"1 ", 10).is_err());

impl usize

pub fn format_into(self, buf: &mut NumBuffer<Self>) -> &str

🔬This is a nightly-only experimental API. (int_format_into #138215)

Available on neither WebAssembly.

Allows users to write an integer (in signed decimal format) into a variable buf of type NumBuffer that is passed by the caller by mutable reference.

Examples

#![feature(int_format_into)]
use core::fmt::NumBuffer;

let n = 0usize;
let mut buf = NumBuffer::new();
assert_eq!(n.format_into(&mut buf), "0");

let n1 = 32usize;
assert_eq!(n1.format_into(&mut buf), "32");

let n2 = usize :: MAX;
assert_eq!(n2.format_into(&mut buf), usize :: MAX.to_string());

Trait Implementations

impl Add<&usize> for &usize

type Output = <usize as Add>::Output

The resulting type after applying the + operator.

fn add(self, other: &usize) -> <usize as Add<usize>>::Output

Performs the + operation.

impl Add<&usize> for usize

type Output = <usize as Add>::Output

The resulting type after applying the + operator.

fn add(self, other: &usize) -> <usize as Add<usize>>::Output

Performs the + operation.

impl Add<usize> for &usize

type Output = <usize as Add>::Output

The resulting type after applying the + operator.

fn add(self, other: usize) -> <usize as Add<usize>>::Output

Performs the + operation.

impl Add for usize

type Output = usize

The resulting type after applying the + operator.

fn add(self, other: usize) -> usize

Performs the + operation.

impl AddAssign<&usize> for Saturating<usize>

fn add_assign(&mut self, other: &usize)

Performs the += operation.

impl AddAssign<&usize> for Wrapping<usize>

fn add_assign(&mut self, other: &usize)

Performs the += operation.

impl AddAssign<&usize> for usize

fn add_assign(&mut self, other: &usize)

Performs the += operation.

impl AddAssign<usize> for Saturating<usize>

fn add_assign(&mut self, other: usize)

Performs the += operation.

impl AddAssign<usize> for Wrapping<usize>

fn add_assign(&mut self, other: usize)

Performs the += operation.

impl AddAssign for usize

fn add_assign(&mut self, other: usize)

Performs the += operation.

impl AtomicPrimitive for usize

type AtomicInner = AtomicUsize

🔬This is a nightly-only experimental API. (atomic_internals)

Temporary implementation detail.

impl Binary for usize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Format unsigned integers in the radix.

impl BitAnd<&usize> for &usize

type Output = <usize as BitAnd>::Output

The resulting type after applying the & operator.

fn bitand(self, other: &usize) -> <usize as BitAnd<usize>>::Output

Performs the & operation.

impl BitAnd<&usize> for usize

type Output = <usize as BitAnd>::Output

The resulting type after applying the & operator.

fn bitand(self, other: &usize) -> <usize as BitAnd<usize>>::Output

Performs the & operation.

impl BitAnd<usize> for &usize

type Output = <usize as BitAnd>::Output

The resulting type after applying the & operator.

fn bitand(self, other: usize) -> <usize as BitAnd<usize>>::Output

Performs the & operation.

impl BitAnd for usize

type Output = usize

The resulting type after applying the & operator.

fn bitand(self, rhs: usize) -> usize

Performs the & operation.

impl BitAndAssign<&usize> for Saturating<usize>

fn bitand_assign(&mut self, other: &usize)

Performs the &= operation.

impl BitAndAssign<&usize> for Wrapping<usize>

fn bitand_assign(&mut self, other: &usize)

Performs the &= operation.

impl BitAndAssign<&usize> for usize

fn bitand_assign(&mut self, other: &usize)

Performs the &= operation.

impl BitAndAssign<usize> for Saturating<usize>

fn bitand_assign(&mut self, other: usize)

Performs the &= operation.

impl BitAndAssign<usize> for Wrapping<usize>

fn bitand_assign(&mut self, other: usize)

Performs the &= operation.

impl BitAndAssign for usize

fn bitand_assign(&mut self, other: usize)

Performs the &= operation.

impl BitOr<&usize> for &usize

type Output = <usize as BitOr>::Output

The resulting type after applying the | operator.

fn bitor(self, other: &usize) -> <usize as BitOr<usize>>::Output

Performs the | operation.

impl BitOr<&usize> for usize

type Output = <usize as BitOr>::Output

The resulting type after applying the | operator.

fn bitor(self, other: &usize) -> <usize as BitOr<usize>>::Output

Performs the | operation.

impl BitOr<usize> for &usize

type Output = <usize as BitOr>::Output

The resulting type after applying the | operator.

fn bitor(self, other: usize) -> <usize as BitOr<usize>>::Output

Performs the | operation.

impl BitOr for usize

type Output = usize

The resulting type after applying the | operator.

fn bitor(self, rhs: usize) -> usize

Performs the | operation.

impl BitOrAssign<&usize> for Saturating<usize>

fn bitor_assign(&mut self, other: &usize)

Performs the |= operation.

impl BitOrAssign<&usize> for Wrapping<usize>

fn bitor_assign(&mut self, other: &usize)

Performs the |= operation.

impl BitOrAssign<&usize> for usize

fn bitor_assign(&mut self, other: &usize)

Performs the |= operation.

impl BitOrAssign<usize> for Saturating<usize>

fn bitor_assign(&mut self, other: usize)

Performs the |= operation.

impl BitOrAssign<usize> for Wrapping<usize>

fn bitor_assign(&mut self, other: usize)

Performs the |= operation.

impl BitOrAssign for usize

fn bitor_assign(&mut self, other: usize)

Performs the |= operation.

impl BitXor<&usize> for &usize

type Output = <usize as BitXor>::Output

The resulting type after applying the ^ operator.

fn bitxor(self, other: &usize) -> <usize as BitXor<usize>>::Output

Performs the ^ operation.

impl BitXor<&usize> for usize

type Output = <usize as BitXor>::Output

The resulting type after applying the ^ operator.

fn bitxor(self, other: &usize) -> <usize as BitXor<usize>>::Output

Performs the ^ operation.

impl BitXor<usize> for &usize

type Output = <usize as BitXor>::Output

The resulting type after applying the ^ operator.

fn bitxor(self, other: usize) -> <usize as BitXor<usize>>::Output

Performs the ^ operation.

impl BitXor for usize

type Output = usize

The resulting type after applying the ^ operator.

fn bitxor(self, other: usize) -> usize

Performs the ^ operation.

impl BitXorAssign<&usize> for Saturating<usize>

fn bitxor_assign(&mut self, other: &usize)

Performs the ^= operation.

impl BitXorAssign<&usize> for Wrapping<usize>

fn bitxor_assign(&mut self, other: &usize)

Performs the ^= operation.

impl BitXorAssign<&usize> for usize

fn bitxor_assign(&mut self, other: &usize)

Performs the ^= operation.

impl BitXorAssign<usize> for Saturating<usize>

fn bitxor_assign(&mut self, other: usize)

Performs the ^= operation.

impl BitXorAssign<usize> for Wrapping<usize>

fn bitxor_assign(&mut self, other: usize)

Performs the ^= operation.

impl BitXorAssign for usize

fn bitxor_assign(&mut self, other: usize)

Performs the ^= operation.

impl CarryingMulAdd for usize

type Unsigned = usize

🔬This is a nightly-only experimental API. (core_intrinsics_fallbacks)

fn carrying_mul_add(self, a: Self, b: Self, c: Self) -> (usize, usize)

🔬This is a nightly-only experimental API. (core_intrinsics_fallbacks)

impl CarrylessMul for usize

fn carryless_mul(self, rhs: Self) -> Self

🔬This is a nightly-only experimental API. (core_intrinsics_fallbacks)

See super::carryless_mul; we just need the trait indirection to handle different types since calling intrinsics with generics doesn’t work.

impl Clone for usize

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

where Self:,

Performs copy-assignment from source.

impl Debug for usize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for usize

fn default() -> usize

Returns the default value of 0

impl DisjointBitOr for usize

unsafe fn disjoint_bitor(self, other: Self) -> Self

🔬This is a nightly-only experimental API. (core_intrinsics_fallbacks)

See super::disjoint_bitor; we just need the trait indirection to handle different types since calling intrinsics with generics doesn’t work.

impl Display for usize

Available on neither WebAssembly.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Distribution<usize> for RangeFull

fn sample(&self, source: &mut (impl RandomSource + ?Sized)) -> usize

🔬This is a nightly-only experimental API. (random #130703)

Samples a random value from the distribution, using the specified random source.

impl Div<&usize> for &usize

type Output = <usize as Div>::Output

The resulting type after applying the / operator.

fn div(self, other: &usize) -> <usize as Div<usize>>::Output

Performs the / operation.

impl Div<&usize> for usize

type Output = <usize as Div>::Output

The resulting type after applying the / operator.

fn div(self, other: &usize) -> <usize as Div<usize>>::Output

Performs the / operation.

impl Div<NonZero<usize>> for usize

fn div(self, other: NonZero<usize>) -> usize

Same as self / other.get(), but because other is a NonZero<_>, there’s never a runtime check for division-by-zero.

This operation rounds towards zero, truncating any fractional part of the exact result, and cannot panic.

type Output = usize

The resulting type after applying the / operator.

impl Div<usize> for &usize

type Output = <usize as Div>::Output

The resulting type after applying the / operator.

fn div(self, other: usize) -> <usize as Div<usize>>::Output

Performs the / operation.

impl Div for usize

This operation rounds towards zero, truncating any fractional part of the exact result.

Panics

This operation will panic if other == 0.

type Output = usize

The resulting type after applying the / operator.

fn div(self, other: usize) -> usize

Performs the / operation.

impl DivAssign<&usize> for Saturating<usize>

fn div_assign(&mut self, other: &usize)

Performs the /= operation.

impl DivAssign<&usize> for Wrapping<usize>

fn div_assign(&mut self, other: &usize)

Performs the /= operation.

impl DivAssign<&usize> for usize

fn div_assign(&mut self, other: &usize)

Performs the /= operation.

impl DivAssign<NonZero<usize>> for usize

fn div_assign(&mut self, other: NonZero<usize>)

Same as self /= other.get(), but because other is a NonZero<_>, there’s never a runtime check for division-by-zero.

This operation rounds towards zero, truncating any fractional part of the exact result, and cannot panic.

impl DivAssign<usize> for Saturating<usize>

fn div_assign(&mut self, other: usize)

Performs the /= operation.

impl DivAssign<usize> for Wrapping<usize>

fn div_assign(&mut self, other: usize)

Performs the /= operation.

impl DivAssign for usize

fn div_assign(&mut self, other: usize)

Performs the /= operation.

impl From<Alignment> for usize

fn from(align: Alignment) -> usize

Converts to this type from the input type.

impl From<bool> for usize

fn from(b: bool) -> Self

Converts from bool to usize , by turning false into 0 and true into 1.

Examples

assert_eq!(usize::from(false), 0);

assert_eq!(usize::from(true), 1);

impl From<u16> for usize

fn from(small: u16) -> Self

Converts from u16 to usize losslessly.

impl From<u8> for usize

fn from(small: u8) -> Self

Converts from u8 to usize losslessly.

impl From<usize> for AtomicUsize

fn from(v: usize) -> Self

Converts an usize into an AtomicUsize.

impl FromStr for usize

fn from_str(src: &str) -> Result<usize, ParseIntError>

Parses an integer from a string slice with decimal digits.

The characters are expected to be an optional + sign followed by only digits. Leading and trailing non-digit characters (including whitespace) represent an error. Underscores (which are accepted in Rust literals) also represent an error.

See also

For parsing numbers in other bases, such as binary or hexadecimal, see from_str_radix.

Examples

use std::str::FromStr;

assert_eq!(usize::from_str("+10"), Ok(10));

Trailing space returns error:

assert!(usize::from_str("1 ").is_err());

type Err = ParseIntError

The associated error which can be returned from parsing.

impl FunnelShift for usize

unsafe fn unchecked_funnel_shl(self, rhs: Self, shift: u32) -> Self

🔬This is a nightly-only experimental API. (core_intrinsics_fallbacks)

See super::unchecked_funnel_shl; we just need the trait indirection to handle different types since calling intrinsics with generics doesn’t work.

unsafe fn unchecked_funnel_shr(self, rhs: Self, shift: u32) -> Self

🔬This is a nightly-only experimental API. (core_intrinsics_fallbacks)

See super::unchecked_funnel_shr; we just need the trait indirection to handle different types since calling intrinsics with generics doesn’t work.

impl GetDisjointMutIndex for usize

fn is_in_bounds(&self, len: usize) -> bool

🔬This is a nightly-only experimental API. (get_disjoint_mut_helpers)

Returns true if self is in bounds for len slice elements.

fn is_overlapping(&self, other: &Self) -> bool

🔬This is a nightly-only experimental API. (get_disjoint_mut_helpers)

Returns true if self overlaps with other.

impl Hash for usize

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[usize], state: &mut H)

Feeds a slice of this type into the given Hasher.

impl LowerExp for usize

Available on neither WebAssembly.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl LowerHex for usize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Format unsigned integers in the radix.

impl Mul<&usize> for &usize

type Output = <usize as Mul>::Output

The resulting type after applying the * operator.

fn mul(self, other: &usize) -> <usize as Mul<usize>>::Output

Performs the * operation.

impl Mul<&usize> for usize

type Output = <usize as Mul>::Output

The resulting type after applying the * operator.

fn mul(self, other: &usize) -> <usize as Mul<usize>>::Output

Performs the * operation.

impl Mul<usize> for &usize

type Output = <usize as Mul>::Output

The resulting type after applying the * operator.

fn mul(self, other: usize) -> <usize as Mul<usize>>::Output

Performs the * operation.

impl Mul for usize

type Output = usize

The resulting type after applying the * operator.

fn mul(self, other: usize) -> usize

Performs the * operation.

impl MulAssign<&usize> for Saturating<usize>

fn mul_assign(&mut self, other: &usize)

Performs the *= operation.

impl MulAssign<&usize> for Wrapping<usize>

fn mul_assign(&mut self, other: &usize)

Performs the *= operation.

impl MulAssign<&usize> for usize

fn mul_assign(&mut self, other: &usize)

Performs the *= operation.

impl MulAssign<usize> for Saturating<usize>

fn mul_assign(&mut self, other: usize)

Performs the *= operation.

impl MulAssign<usize> for Wrapping<usize>

fn mul_assign(&mut self, other: usize)

Performs the *= operation.

impl MulAssign for usize

fn mul_assign(&mut self, other: usize)

Performs the *= operation.

impl Not for &usize

type Output = <usize as Not>::Output

The resulting type after applying the ! operator.

fn not(self) -> <usize as Not>::Output

Performs the unary ! operation.

impl Not for usize

type Output = usize

The resulting type after applying the ! operator.

fn not(self) -> usize

Performs the unary ! operation.

impl NumBufferTrait for usize

const BUF_SIZE: usize

🔬This is a nightly-only experimental API. (int_format_into #138215)

Maximum number of digits in decimal base of the implemented integer.

impl Octal for usize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Format unsigned integers in the radix.

impl Ord for usize

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

impl PartialEq for usize

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Self) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for usize

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Self) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Self) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Self) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Self) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> Product<&'a usize> for usize

fn product<I: Iterator<Item = &'a Self>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by multiplying the items.

impl Product for usize

fn product<I: Iterator<Item = Self>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by multiplying the items.

impl RangePattern for usize

const MIN: usize = usize::MIN

🔬This is a nightly-only experimental API. (pattern_type_range_trait #123646)

Trait version of the inherent MIN assoc const.

const MAX: usize = usize::MAX

🔬This is a nightly-only experimental API. (pattern_type_range_trait #123646)

Trait version of the inherent MIN assoc const.

fn sub_one(self) -> Self

🔬This is a nightly-only experimental API. (pattern_type_range_trait #123646)

A compile-time helper to subtract 1 for exclusive ranges.

impl Rem<&usize> for &usize

type Output = <usize as Rem>::Output

The resulting type after applying the % operator.

fn rem(self, other: &usize) -> <usize as Rem<usize>>::Output

Performs the % operation.

impl Rem<&usize> for usize

type Output = <usize as Rem>::Output

The resulting type after applying the % operator.

fn rem(self, other: &usize) -> <usize as Rem<usize>>::Output

Performs the % operation.

impl Rem<NonZero<usize>> for usize

fn rem(self, other: NonZero<usize>) -> usize

This operation satisfies n % d == n - (n / d) * d, and cannot panic.

type Output = usize

The resulting type after applying the % operator.

impl Rem<usize> for &usize

type Output = <usize as Rem>::Output

The resulting type after applying the % operator.

fn rem(self, other: usize) -> <usize as Rem<usize>>::Output

Performs the % operation.

impl Rem for usize

This operation satisfies n % d == n - (n / d) * d. The result has the same sign as the left operand.

Panics

This operation will panic if other == 0.

type Output = usize

The resulting type after applying the % operator.

fn rem(self, other: usize) -> usize

Performs the % operation.

impl RemAssign<&usize> for Saturating<usize>

fn rem_assign(&mut self, other: &usize)

Performs the %= operation.

impl RemAssign<&usize> for Wrapping<usize>

fn rem_assign(&mut self, other: &usize)

Performs the %= operation.

impl RemAssign<&usize> for usize

fn rem_assign(&mut self, other: &usize)

Performs the %= operation.

impl RemAssign<NonZero<usize>> for usize

fn rem_assign(&mut self, other: NonZero<usize>)

This operation satisfies n % d == n - (n / d) * d, and cannot panic.

impl RemAssign<usize> for Saturating<usize>

fn rem_assign(&mut self, other: usize)

Performs the %= operation.

impl RemAssign<usize> for Wrapping<usize>

fn rem_assign(&mut self, other: usize)

Performs the %= operation.

impl RemAssign for usize

fn rem_assign(&mut self, other: usize)

Performs the %= operation.

impl Shl<&i128> for &usize

type Output = <usize as Shl<i128>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i128) -> <usize as Shl<i128>>::Output

Performs the << operation.

impl Shl<&i128> for usize

type Output = <usize as Shl<i128>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i128) -> <usize as Shl<i128>>::Output

Performs the << operation.

impl Shl<&i16> for &usize

type Output = <usize as Shl<i16>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i16) -> <usize as Shl<i16>>::Output

Performs the << operation.

impl Shl<&i16> for usize

type Output = <usize as Shl<i16>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i16) -> <usize as Shl<i16>>::Output

Performs the << operation.

impl Shl<&i32> for &usize

type Output = <usize as Shl<i32>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i32) -> <usize as Shl<i32>>::Output

Performs the << operation.

impl Shl<&i32> for usize

type Output = <usize as Shl<i32>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i32) -> <usize as Shl<i32>>::Output

Performs the << operation.

impl Shl<&i64> for &usize

type Output = <usize as Shl<i64>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i64) -> <usize as Shl<i64>>::Output

Performs the << operation.

impl Shl<&i64> for usize

type Output = <usize as Shl<i64>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i64) -> <usize as Shl<i64>>::Output

Performs the << operation.

impl Shl<&i8> for &usize

type Output = <usize as Shl<i8>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i8) -> <usize as Shl<i8>>::Output

Performs the << operation.

impl Shl<&i8> for usize

type Output = <usize as Shl<i8>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &i8) -> <usize as Shl<i8>>::Output

Performs the << operation.

impl Shl<&isize> for &usize

type Output = <usize as Shl<isize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &isize) -> <usize as Shl<isize>>::Output

Performs the << operation.

impl Shl<&isize> for usize

type Output = <usize as Shl<isize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &isize) -> <usize as Shl<isize>>::Output

Performs the << operation.

impl Shl<&u128> for &usize

type Output = <usize as Shl<u128>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u128) -> <usize as Shl<u128>>::Output

Performs the << operation.

impl Shl<&u128> for usize

type Output = <usize as Shl<u128>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u128) -> <usize as Shl<u128>>::Output

Performs the << operation.

impl Shl<&u16> for &usize

type Output = <usize as Shl<u16>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u16) -> <usize as Shl<u16>>::Output

Performs the << operation.

impl Shl<&u16> for usize

type Output = <usize as Shl<u16>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u16) -> <usize as Shl<u16>>::Output

Performs the << operation.

impl Shl<&u32> for &usize

type Output = <usize as Shl<u32>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u32) -> <usize as Shl<u32>>::Output

Performs the << operation.

impl Shl<&u32> for usize

type Output = <usize as Shl<u32>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u32) -> <usize as Shl<u32>>::Output

Performs the << operation.

impl Shl<&u64> for &usize

type Output = <usize as Shl<u64>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u64) -> <usize as Shl<u64>>::Output

Performs the << operation.

impl Shl<&u64> for usize

type Output = <usize as Shl<u64>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u64) -> <usize as Shl<u64>>::Output

Performs the << operation.

impl Shl<&u8> for &usize

type Output = <usize as Shl<u8>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u8) -> <usize as Shl<u8>>::Output

Performs the << operation.

impl Shl<&u8> for usize

type Output = <usize as Shl<u8>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &u8) -> <usize as Shl<u8>>::Output

Performs the << operation.

impl<'lhs, const N: usize> Shl<&usize> for &'lhs Simd<usize, N>

type Output = Simd<usize, N>

The resulting type after applying the << operator.

fn shl(self, rhs: &usize) -> Self::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<i128>

type Output = <Wrapping<i128> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i128> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<i16>

type Output = <Wrapping<i16> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i16> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<i32>

type Output = <Wrapping<i32> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i32> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<i64>

type Output = <Wrapping<i64> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i64> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<i8>

type Output = <Wrapping<i8> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i8> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<isize>

type Output = <Wrapping<isize> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<isize> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<u128>

type Output = <Wrapping<u128> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u128> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<u16>

type Output = <Wrapping<u16> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u16> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<u32>

type Output = <Wrapping<u32> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u32> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<u64>

type Output = <Wrapping<u64> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u64> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<u8>

type Output = <Wrapping<u8> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u8> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &Wrapping<usize>

type Output = <Wrapping<usize> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<usize> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &i128

type Output = <i128 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i128 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &i16

type Output = <i16 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i16 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &i32

type Output = <i32 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i32 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &i64

type Output = <i64 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i64 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &i8

type Output = <i8 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i8 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &isize

type Output = <isize as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <isize as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &u128

type Output = <u128 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u128 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &u16

type Output = <u16 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u16 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &u32

type Output = <u32 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u32 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &u64

type Output = <u64 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u64 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &u8

type Output = <u8 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u8 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for &usize

type Output = <usize as Shl>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <usize as Shl<usize>>::Output

Performs the << operation.

impl<const N: usize> Shl<&usize> for Simd<usize, N>

type Output = Simd<usize, N>

The resulting type after applying the << operator.

fn shl(self, rhs: &usize) -> Self::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<i128>

type Output = <Wrapping<i128> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i128> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<i16>

type Output = <Wrapping<i16> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i16> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<i32>

type Output = <Wrapping<i32> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i32> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<i64>

type Output = <Wrapping<i64> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i64> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<i8>

type Output = <Wrapping<i8> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<i8> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<isize>

type Output = <Wrapping<isize> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<isize> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<u128>

type Output = <Wrapping<u128> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u128> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<u16>

type Output = <Wrapping<u16> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u16> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<u32>

type Output = <Wrapping<u32> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u32> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<u64>

type Output = <Wrapping<u64> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u64> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<u8>

type Output = <Wrapping<u8> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<u8> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for Wrapping<usize>

type Output = <Wrapping<usize> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <Wrapping<usize> as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for i128

type Output = <i128 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i128 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for i16

type Output = <i16 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i16 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for i32

type Output = <i32 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i32 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for i64

type Output = <i64 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i64 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for i8

type Output = <i8 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <i8 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for isize

type Output = <isize as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <isize as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for u128

type Output = <u128 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u128 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for u16

type Output = <u16 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u16 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for u32

type Output = <u32 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u32 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for u64

type Output = <u64 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u64 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for u8

type Output = <u8 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <u8 as Shl<usize>>::Output

Performs the << operation.

impl Shl<&usize> for usize

type Output = <usize as Shl>::Output

The resulting type after applying the << operator.

fn shl(self, other: &usize) -> <usize as Shl<usize>>::Output

Performs the << operation.

impl Shl<i128> for &usize

type Output = <usize as Shl<i128>>::Output

The resulting type after applying the << operator.

fn shl(self, other: i128) -> <usize as Shl<i128>>::Output

Performs the << operation.

impl Shl<i128> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: i128) -> usize

Performs the << operation.

impl Shl<i16> for &usize

type Output = <usize as Shl<i16>>::Output

The resulting type after applying the << operator.

fn shl(self, other: i16) -> <usize as Shl<i16>>::Output

Performs the << operation.

impl Shl<i16> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: i16) -> usize

Performs the << operation.

impl Shl<i32> for &usize

type Output = <usize as Shl<i32>>::Output

The resulting type after applying the << operator.

fn shl(self, other: i32) -> <usize as Shl<i32>>::Output

Performs the << operation.

impl Shl<i32> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: i32) -> usize

Performs the << operation.

impl Shl<i64> for &usize

type Output = <usize as Shl<i64>>::Output

The resulting type after applying the << operator.

fn shl(self, other: i64) -> <usize as Shl<i64>>::Output

Performs the << operation.

impl Shl<i64> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: i64) -> usize

Performs the << operation.

impl Shl<i8> for &usize

type Output = <usize as Shl<i8>>::Output

The resulting type after applying the << operator.

fn shl(self, other: i8) -> <usize as Shl<i8>>::Output

Performs the << operation.

impl Shl<i8> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: i8) -> usize

Performs the << operation.

impl Shl<isize> for &usize

type Output = <usize as Shl<isize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: isize) -> <usize as Shl<isize>>::Output

Performs the << operation.

impl Shl<isize> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: isize) -> usize

Performs the << operation.

impl Shl<u128> for &usize

type Output = <usize as Shl<u128>>::Output

The resulting type after applying the << operator.

fn shl(self, other: u128) -> <usize as Shl<u128>>::Output

Performs the << operation.

impl Shl<u128> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: u128) -> usize

Performs the << operation.

impl Shl<u16> for &usize

type Output = <usize as Shl<u16>>::Output

The resulting type after applying the << operator.

fn shl(self, other: u16) -> <usize as Shl<u16>>::Output

Performs the << operation.

impl Shl<u16> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: u16) -> usize

Performs the << operation.

impl Shl<u32> for &usize

type Output = <usize as Shl<u32>>::Output

The resulting type after applying the << operator.

fn shl(self, other: u32) -> <usize as Shl<u32>>::Output

Performs the << operation.

impl Shl<u32> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: u32) -> usize

Performs the << operation.

impl Shl<u64> for &usize

type Output = <usize as Shl<u64>>::Output

The resulting type after applying the << operator.

fn shl(self, other: u64) -> <usize as Shl<u64>>::Output

Performs the << operation.

impl Shl<u64> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: u64) -> usize

Performs the << operation.

impl Shl<u8> for &usize

type Output = <usize as Shl<u8>>::Output

The resulting type after applying the << operator.

fn shl(self, other: u8) -> <usize as Shl<u8>>::Output

Performs the << operation.

impl Shl<u8> for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: u8) -> usize

Performs the << operation.

impl<'lhs, const N: usize> Shl<usize> for &'lhs Simd<usize, N>

type Output = Simd<usize, N>

The resulting type after applying the << operator.

fn shl(self, rhs: usize) -> Self::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<i128>

type Output = <Wrapping<i128> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<i128> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<i16>

type Output = <Wrapping<i16> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<i16> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<i32>

type Output = <Wrapping<i32> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<i32> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<i64>

type Output = <Wrapping<i64> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<i64> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<i8>

type Output = <Wrapping<i8> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<i8> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<isize>

type Output = <Wrapping<isize> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<isize> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<u128>

type Output = <Wrapping<u128> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<u128> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<u16>

type Output = <Wrapping<u16> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<u16> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<u32>

type Output = <Wrapping<u32> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<u32> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<u64>

type Output = <Wrapping<u64> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<u64> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<u8>

type Output = <Wrapping<u8> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<u8> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &Wrapping<usize>

type Output = <Wrapping<usize> as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <Wrapping<usize> as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &i128

type Output = <i128 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <i128 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &i16

type Output = <i16 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <i16 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &i32

type Output = <i32 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <i32 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &i64

type Output = <i64 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <i64 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &i8

type Output = <i8 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <i8 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &isize

type Output = <isize as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <isize as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &u128

type Output = <u128 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <u128 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &u16

type Output = <u16 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <u16 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &u32

type Output = <u32 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <u32 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &u64

type Output = <u64 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <u64 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &u8

type Output = <u8 as Shl<usize>>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <u8 as Shl<usize>>::Output

Performs the << operation.

impl Shl<usize> for &usize

type Output = <usize as Shl>::Output

The resulting type after applying the << operator.

fn shl(self, other: usize) -> <usize as Shl<usize>>::Output

Performs the << operation.

impl<const N: usize> Shl<usize> for Simd<usize, N>

type Output = Simd<usize, N>

The resulting type after applying the << operator.

fn shl(self, rhs: usize) -> Self::Output

Performs the << operation.

impl Shl<usize> for Wrapping<i128>

type Output = Wrapping<i128>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<i128>

Performs the << operation.

impl Shl<usize> for Wrapping<i16>

type Output = Wrapping<i16>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<i16>

Performs the << operation.

impl Shl<usize> for Wrapping<i32>

type Output = Wrapping<i32>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<i32>

Performs the << operation.

impl Shl<usize> for Wrapping<i64>

type Output = Wrapping<i64>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<i64>

Performs the << operation.

impl Shl<usize> for Wrapping<i8>

type Output = Wrapping<i8>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<i8>

Performs the << operation.

impl Shl<usize> for Wrapping<isize>

type Output = Wrapping<isize>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<isize>

Performs the << operation.

impl Shl<usize> for Wrapping<u128>

type Output = Wrapping<u128>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<u128>

Performs the << operation.

impl Shl<usize> for Wrapping<u16>

type Output = Wrapping<u16>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<u16>

Performs the << operation.

impl Shl<usize> for Wrapping<u32>

type Output = Wrapping<u32>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<u32>

Performs the << operation.

impl Shl<usize> for Wrapping<u64>

type Output = Wrapping<u64>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<u64>

Performs the << operation.

impl Shl<usize> for Wrapping<u8>

type Output = Wrapping<u8>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<u8>

Performs the << operation.

impl Shl<usize> for Wrapping<usize>

type Output = Wrapping<usize>

The resulting type after applying the << operator.

fn shl(self, other: usize) -> Wrapping<usize>

Performs the << operation.

impl Shl<usize> for i128

type Output = i128

The resulting type after applying the << operator.

fn shl(self, other: usize) -> i128

Performs the << operation.

impl Shl<usize> for i16

type Output = i16

The resulting type after applying the << operator.

fn shl(self, other: usize) -> i16

Performs the << operation.

impl Shl<usize> for i32

type Output = i32

The resulting type after applying the << operator.

fn shl(self, other: usize) -> i32

Performs the << operation.

impl Shl<usize> for i64

type Output = i64

The resulting type after applying the << operator.

fn shl(self, other: usize) -> i64

Performs the << operation.

impl Shl<usize> for i8

type Output = i8

The resulting type after applying the << operator.

fn shl(self, other: usize) -> i8

Performs the << operation.

impl Shl<usize> for isize

type Output = isize

The resulting type after applying the << operator.

fn shl(self, other: usize) -> isize

Performs the << operation.

impl Shl<usize> for u128

type Output = u128

The resulting type after applying the << operator.

fn shl(self, other: usize) -> u128

Performs the << operation.

impl Shl<usize> for u16

type Output = u16

The resulting type after applying the << operator.

fn shl(self, other: usize) -> u16

Performs the << operation.

impl Shl<usize> for u32

type Output = u32

The resulting type after applying the << operator.

fn shl(self, other: usize) -> u32

Performs the << operation.

impl Shl<usize> for u64

type Output = u64

The resulting type after applying the << operator.

fn shl(self, other: usize) -> u64

Performs the << operation.

impl Shl<usize> for u8

type Output = u8

The resulting type after applying the << operator.

fn shl(self, other: usize) -> u8

Performs the << operation.

impl Shl for usize

type Output = usize

The resulting type after applying the << operator.

fn shl(self, other: usize) -> usize

Performs the << operation.

impl ShlAssign<&i128> for usize

fn shl_assign(&mut self, other: &i128)

Performs the <<= operation.

impl ShlAssign<&i16> for usize

fn shl_assign(&mut self, other: &i16)

Performs the <<= operation.

impl ShlAssign<&i32> for usize

fn shl_assign(&mut self, other: &i32)

Performs the <<= operation.

impl ShlAssign<&i64> for usize

fn shl_assign(&mut self, other: &i64)

Performs the <<= operation.

impl ShlAssign<&i8> for usize

fn shl_assign(&mut self, other: &i8)

Performs the <<= operation.

impl ShlAssign<&isize> for usize

fn shl_assign(&mut self, other: &isize)

Performs the <<= operation.

impl ShlAssign<&u128> for usize

fn shl_assign(&mut self, other: &u128)

Performs the <<= operation.

impl ShlAssign<&u16> for usize

fn shl_assign(&mut self, other: &u16)

Performs the <<= operation.

impl ShlAssign<&u32> for usize

fn shl_assign(&mut self, other: &u32)

Performs the <<= operation.

impl ShlAssign<&u64> for usize

fn shl_assign(&mut self, other: &u64)

Performs the <<= operation.

impl ShlAssign<&u8> for usize

fn shl_assign(&mut self, other: &u8)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<i128>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<i16>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<i32>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<i64>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<i8>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<isize>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<u128>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<u16>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<u32>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<u64>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<u8>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for Wrapping<usize>

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for i128

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for i16

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for i32

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for i64

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for i8

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for isize

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for u128

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for u16

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for u32

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for u64

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for u8

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<&usize> for usize

fn shl_assign(&mut self, other: &usize)

Performs the <<= operation.

impl ShlAssign<i128> for usize

fn shl_assign(&mut self, other: i128)

Performs the <<= operation.

impl ShlAssign<i16> for usize

fn shl_assign(&mut self, other: i16)

Performs the <<= operation.

impl ShlAssign<i32> for usize

fn shl_assign(&mut self, other: i32)

Performs the <<= operation.

impl ShlAssign<i64> for usize

fn shl_assign(&mut self, other: i64)

Performs the <<= operation.

impl ShlAssign<i8> for usize

fn shl_assign(&mut self, other: i8)

Performs the <<= operation.

impl ShlAssign<isize> for usize

fn shl_assign(&mut self, other: isize)

Performs the <<= operation.

impl ShlAssign<u128> for usize

fn shl_assign(&mut self, other: u128)

Performs the <<= operation.

impl ShlAssign<u16> for usize

fn shl_assign(&mut self, other: u16)

Performs the <<= operation.

impl ShlAssign<u32> for usize

fn shl_assign(&mut self, other: u32)

Performs the <<= operation.

impl ShlAssign<u64> for usize

fn shl_assign(&mut self, other: u64)

Performs the <<= operation.

impl ShlAssign<u8> for usize

fn shl_assign(&mut self, other: u8)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<i128>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<i16>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<i32>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<i64>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<i8>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<isize>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<u128>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<u16>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<u32>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<u64>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<u8>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for Wrapping<usize>

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for i128

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for i16

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for i32

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for i64

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for i8

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for isize

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for u128

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for u16

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for u32

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for u64

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign<usize> for u8

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl ShlAssign for usize

fn shl_assign(&mut self, other: usize)

Performs the <<= operation.

impl Shr<&i128> for &usize

type Output = <usize as Shr<i128>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i128) -> <usize as Shr<i128>>::Output

Performs the >> operation.

impl Shr<&i128> for usize

type Output = <usize as Shr<i128>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i128) -> <usize as Shr<i128>>::Output

Performs the >> operation.

impl Shr<&i16> for &usize

type Output = <usize as Shr<i16>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i16) -> <usize as Shr<i16>>::Output

Performs the >> operation.

impl Shr<&i16> for usize

type Output = <usize as Shr<i16>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i16) -> <usize as Shr<i16>>::Output

Performs the >> operation.

impl Shr<&i32> for &usize

type Output = <usize as Shr<i32>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i32) -> <usize as Shr<i32>>::Output

Performs the >> operation.

impl Shr<&i32> for usize

type Output = <usize as Shr<i32>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i32) -> <usize as Shr<i32>>::Output

Performs the >> operation.

impl Shr<&i64> for &usize

type Output = <usize as Shr<i64>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i64) -> <usize as Shr<i64>>::Output

Performs the >> operation.

impl Shr<&i64> for usize

type Output = <usize as Shr<i64>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i64) -> <usize as Shr<i64>>::Output

Performs the >> operation.

impl Shr<&i8> for &usize

type Output = <usize as Shr<i8>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i8) -> <usize as Shr<i8>>::Output

Performs the >> operation.

impl Shr<&i8> for usize

type Output = <usize as Shr<i8>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &i8) -> <usize as Shr<i8>>::Output

Performs the >> operation.

impl Shr<&isize> for &usize

type Output = <usize as Shr<isize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &isize) -> <usize as Shr<isize>>::Output

Performs the >> operation.

impl Shr<&isize> for usize

type Output = <usize as Shr<isize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &isize) -> <usize as Shr<isize>>::Output

Performs the >> operation.

impl Shr<&u128> for &usize

type Output = <usize as Shr<u128>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u128) -> <usize as Shr<u128>>::Output

Performs the >> operation.

impl Shr<&u128> for usize

type Output = <usize as Shr<u128>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u128) -> <usize as Shr<u128>>::Output

Performs the >> operation.

impl Shr<&u16> for &usize

type Output = <usize as Shr<u16>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u16) -> <usize as Shr<u16>>::Output

Performs the >> operation.

impl Shr<&u16> for usize

type Output = <usize as Shr<u16>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u16) -> <usize as Shr<u16>>::Output

Performs the >> operation.

impl Shr<&u32> for &usize

type Output = <usize as Shr<u32>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u32) -> <usize as Shr<u32>>::Output

Performs the >> operation.

impl Shr<&u32> for usize

type Output = <usize as Shr<u32>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u32) -> <usize as Shr<u32>>::Output

Performs the >> operation.

impl Shr<&u64> for &usize

type Output = <usize as Shr<u64>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u64) -> <usize as Shr<u64>>::Output

Performs the >> operation.

impl Shr<&u64> for usize

type Output = <usize as Shr<u64>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u64) -> <usize as Shr<u64>>::Output

Performs the >> operation.

impl Shr<&u8> for &usize

type Output = <usize as Shr<u8>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u8) -> <usize as Shr<u8>>::Output

Performs the >> operation.

impl Shr<&u8> for usize

type Output = <usize as Shr<u8>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &u8) -> <usize as Shr<u8>>::Output

Performs the >> operation.

impl<'lhs, const N: usize> Shr<&usize> for &'lhs Simd<usize, N>

type Output = Simd<usize, N>

The resulting type after applying the >> operator.

fn shr(self, rhs: &usize) -> Self::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<i128>

type Output = <Wrapping<i128> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i128> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<i16>

type Output = <Wrapping<i16> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i16> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<i32>

type Output = <Wrapping<i32> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i32> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<i64>

type Output = <Wrapping<i64> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i64> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<i8>

type Output = <Wrapping<i8> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i8> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<isize>

type Output = <Wrapping<isize> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<isize> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<u128>

type Output = <Wrapping<u128> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u128> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<u16>

type Output = <Wrapping<u16> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u16> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<u32>

type Output = <Wrapping<u32> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u32> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<u64>

type Output = <Wrapping<u64> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u64> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<u8>

type Output = <Wrapping<u8> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u8> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &Wrapping<usize>

type Output = <Wrapping<usize> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<usize> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &i128

type Output = <i128 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i128 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &i16

type Output = <i16 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i16 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &i32

type Output = <i32 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i32 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &i64

type Output = <i64 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i64 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &i8

type Output = <i8 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i8 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &isize

type Output = <isize as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <isize as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &u128

type Output = <u128 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u128 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &u16

type Output = <u16 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u16 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &u32

type Output = <u32 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u32 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &u64

type Output = <u64 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u64 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &u8

type Output = <u8 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u8 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for &usize

type Output = <usize as Shr>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <usize as Shr<usize>>::Output

Performs the >> operation.

impl<const N: usize> Shr<&usize> for Simd<usize, N>

type Output = Simd<usize, N>

The resulting type after applying the >> operator.

fn shr(self, rhs: &usize) -> Self::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<i128>

type Output = <Wrapping<i128> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i128> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<i16>

type Output = <Wrapping<i16> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i16> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<i32>

type Output = <Wrapping<i32> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i32> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<i64>

type Output = <Wrapping<i64> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i64> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<i8>

type Output = <Wrapping<i8> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<i8> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<isize>

type Output = <Wrapping<isize> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<isize> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<u128>

type Output = <Wrapping<u128> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u128> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<u16>

type Output = <Wrapping<u16> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u16> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<u32>

type Output = <Wrapping<u32> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u32> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<u64>

type Output = <Wrapping<u64> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u64> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<u8>

type Output = <Wrapping<u8> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<u8> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for Wrapping<usize>

type Output = <Wrapping<usize> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <Wrapping<usize> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for i128

type Output = <i128 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i128 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for i16

type Output = <i16 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i16 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for i32

type Output = <i32 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i32 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for i64

type Output = <i64 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i64 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for i8

type Output = <i8 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <i8 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for isize

type Output = <isize as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <isize as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for u128

type Output = <u128 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u128 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for u16

type Output = <u16 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u16 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for u32

type Output = <u32 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u32 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for u64

type Output = <u64 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u64 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for u8

type Output = <u8 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <u8 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<&usize> for usize

type Output = <usize as Shr>::Output

The resulting type after applying the >> operator.

fn shr(self, other: &usize) -> <usize as Shr<usize>>::Output

Performs the >> operation.

impl Shr<i128> for &usize

type Output = <usize as Shr<i128>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: i128) -> <usize as Shr<i128>>::Output

Performs the >> operation.

impl Shr<i128> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: i128) -> usize

Performs the >> operation.

impl Shr<i16> for &usize

type Output = <usize as Shr<i16>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: i16) -> <usize as Shr<i16>>::Output

Performs the >> operation.

impl Shr<i16> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: i16) -> usize

Performs the >> operation.

impl Shr<i32> for &usize

type Output = <usize as Shr<i32>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: i32) -> <usize as Shr<i32>>::Output

Performs the >> operation.

impl Shr<i32> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: i32) -> usize

Performs the >> operation.

impl Shr<i64> for &usize

type Output = <usize as Shr<i64>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: i64) -> <usize as Shr<i64>>::Output

Performs the >> operation.

impl Shr<i64> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: i64) -> usize

Performs the >> operation.

impl Shr<i8> for &usize

type Output = <usize as Shr<i8>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: i8) -> <usize as Shr<i8>>::Output

Performs the >> operation.

impl Shr<i8> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: i8) -> usize

Performs the >> operation.

impl Shr<isize> for &usize

type Output = <usize as Shr<isize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: isize) -> <usize as Shr<isize>>::Output

Performs the >> operation.

impl Shr<isize> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: isize) -> usize

Performs the >> operation.

impl Shr<u128> for &usize

type Output = <usize as Shr<u128>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: u128) -> <usize as Shr<u128>>::Output

Performs the >> operation.

impl Shr<u128> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: u128) -> usize

Performs the >> operation.

impl Shr<u16> for &usize

type Output = <usize as Shr<u16>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: u16) -> <usize as Shr<u16>>::Output

Performs the >> operation.

impl Shr<u16> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: u16) -> usize

Performs the >> operation.

impl Shr<u32> for &usize

type Output = <usize as Shr<u32>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: u32) -> <usize as Shr<u32>>::Output

Performs the >> operation.

impl Shr<u32> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: u32) -> usize

Performs the >> operation.

impl Shr<u64> for &usize

type Output = <usize as Shr<u64>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: u64) -> <usize as Shr<u64>>::Output

Performs the >> operation.

impl Shr<u64> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: u64) -> usize

Performs the >> operation.

impl Shr<u8> for &usize

type Output = <usize as Shr<u8>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: u8) -> <usize as Shr<u8>>::Output

Performs the >> operation.

impl Shr<u8> for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: u8) -> usize

Performs the >> operation.

impl<'lhs, const N: usize> Shr<usize> for &'lhs Simd<usize, N>

type Output = Simd<usize, N>

The resulting type after applying the >> operator.

fn shr(self, rhs: usize) -> Self::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<i128>

type Output = <Wrapping<i128> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<i128> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<i16>

type Output = <Wrapping<i16> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<i16> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<i32>

type Output = <Wrapping<i32> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<i32> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<i64>

type Output = <Wrapping<i64> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<i64> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<i8>

type Output = <Wrapping<i8> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<i8> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<isize>

type Output = <Wrapping<isize> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<isize> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<u128>

type Output = <Wrapping<u128> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<u128> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<u16>

type Output = <Wrapping<u16> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<u16> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<u32>

type Output = <Wrapping<u32> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<u32> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<u64>

type Output = <Wrapping<u64> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<u64> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<u8>

type Output = <Wrapping<u8> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<u8> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &Wrapping<usize>

type Output = <Wrapping<usize> as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <Wrapping<usize> as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &i128

type Output = <i128 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <i128 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &i16

type Output = <i16 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <i16 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &i32

type Output = <i32 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <i32 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &i64

type Output = <i64 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <i64 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &i8

type Output = <i8 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <i8 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &isize

type Output = <isize as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <isize as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &u128

type Output = <u128 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <u128 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &u16

type Output = <u16 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <u16 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &u32

type Output = <u32 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <u32 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &u64

type Output = <u64 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <u64 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &u8

type Output = <u8 as Shr<usize>>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <u8 as Shr<usize>>::Output

Performs the >> operation.

impl Shr<usize> for &usize

type Output = <usize as Shr>::Output

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> <usize as Shr<usize>>::Output

Performs the >> operation.

impl<const N: usize> Shr<usize> for Simd<usize, N>

type Output = Simd<usize, N>

The resulting type after applying the >> operator.

fn shr(self, rhs: usize) -> Self::Output

Performs the >> operation.

impl Shr<usize> for Wrapping<i128>

type Output = Wrapping<i128>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<i128>

Performs the >> operation.

impl Shr<usize> for Wrapping<i16>

type Output = Wrapping<i16>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<i16>

Performs the >> operation.

impl Shr<usize> for Wrapping<i32>

type Output = Wrapping<i32>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<i32>

Performs the >> operation.

impl Shr<usize> for Wrapping<i64>

type Output = Wrapping<i64>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<i64>

Performs the >> operation.

impl Shr<usize> for Wrapping<i8>

type Output = Wrapping<i8>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<i8>

Performs the >> operation.

impl Shr<usize> for Wrapping<isize>

type Output = Wrapping<isize>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<isize>

Performs the >> operation.

impl Shr<usize> for Wrapping<u128>

type Output = Wrapping<u128>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<u128>

Performs the >> operation.

impl Shr<usize> for Wrapping<u16>

type Output = Wrapping<u16>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<u16>

Performs the >> operation.

impl Shr<usize> for Wrapping<u32>

type Output = Wrapping<u32>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<u32>

Performs the >> operation.

impl Shr<usize> for Wrapping<u64>

type Output = Wrapping<u64>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<u64>

Performs the >> operation.

impl Shr<usize> for Wrapping<u8>

type Output = Wrapping<u8>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<u8>

Performs the >> operation.

impl Shr<usize> for Wrapping<usize>

type Output = Wrapping<usize>

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> Wrapping<usize>

Performs the >> operation.

impl Shr<usize> for i128

type Output = i128

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> i128

Performs the >> operation.

impl Shr<usize> for i16

type Output = i16

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> i16

Performs the >> operation.

impl Shr<usize> for i32

type Output = i32

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> i32

Performs the >> operation.

impl Shr<usize> for i64

type Output = i64

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> i64

Performs the >> operation.

impl Shr<usize> for i8

type Output = i8

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> i8

Performs the >> operation.

impl Shr<usize> for isize

type Output = isize

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> isize

Performs the >> operation.

impl Shr<usize> for u128

type Output = u128

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> u128

Performs the >> operation.

impl Shr<usize> for u16

type Output = u16

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> u16

Performs the >> operation.

impl Shr<usize> for u32

type Output = u32

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> u32

Performs the >> operation.

impl Shr<usize> for u64

type Output = u64

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> u64

Performs the >> operation.

impl Shr<usize> for u8

type Output = u8

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> u8

Performs the >> operation.

impl Shr for usize

type Output = usize

The resulting type after applying the >> operator.

fn shr(self, other: usize) -> usize

Performs the >> operation.

impl ShrAssign<&i128> for usize

fn shr_assign(&mut self, other: &i128)

Performs the >>= operation.

impl ShrAssign<&i16> for usize

fn shr_assign(&mut self, other: &i16)

Performs the >>= operation.

impl ShrAssign<&i32> for usize

fn shr_assign(&mut self, other: &i32)

Performs the >>= operation.

impl ShrAssign<&i64> for usize

fn shr_assign(&mut self, other: &i64)

Performs the >>= operation.

impl ShrAssign<&i8> for usize

fn shr_assign(&mut self, other: &i8)

Performs the >>= operation.

impl ShrAssign<&isize> for usize

fn shr_assign(&mut self, other: &isize)

Performs the >>= operation.

impl ShrAssign<&u128> for usize

fn shr_assign(&mut self, other: &u128)

Performs the >>= operation.

impl ShrAssign<&u16> for usize

fn shr_assign(&mut self, other: &u16)

Performs the >>= operation.

impl ShrAssign<&u32> for usize

fn shr_assign(&mut self, other: &u32)

Performs the >>= operation.

impl ShrAssign<&u64> for usize

fn shr_assign(&mut self, other: &u64)

Performs the >>= operation.

impl ShrAssign<&u8> for usize

fn shr_assign(&mut self, other: &u8)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<i128>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<i16>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<i32>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<i64>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<i8>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<isize>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<u128>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<u16>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<u32>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<u64>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<u8>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for Wrapping<usize>

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for i128

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for i16

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for i32

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for i64

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for i8

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for isize

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for u128

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for u16

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for u32

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for u64

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for u8

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<&usize> for usize

fn shr_assign(&mut self, other: &usize)

Performs the >>= operation.

impl ShrAssign<i128> for usize

fn shr_assign(&mut self, other: i128)

Performs the >>= operation.

impl ShrAssign<i16> for usize

fn shr_assign(&mut self, other: i16)

Performs the >>= operation.

impl ShrAssign<i32> for usize

fn shr_assign(&mut self, other: i32)

Performs the >>= operation.

impl ShrAssign<i64> for usize

fn shr_assign(&mut self, other: i64)

Performs the >>= operation.

impl ShrAssign<i8> for usize

fn shr_assign(&mut self, other: i8)

Performs the >>= operation.

impl ShrAssign<isize> for usize

fn shr_assign(&mut self, other: isize)

Performs the >>= operation.

impl ShrAssign<u128> for usize

fn shr_assign(&mut self, other: u128)

Performs the >>= operation.

impl ShrAssign<u16> for usize

fn shr_assign(&mut self, other: u16)

Performs the >>= operation.

impl ShrAssign<u32> for usize

fn shr_assign(&mut self, other: u32)

Performs the >>= operation.

impl ShrAssign<u64> for usize

fn shr_assign(&mut self, other: u64)

Performs the >>= operation.

impl ShrAssign<u8> for usize

fn shr_assign(&mut self, other: u8)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<i128>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<i16>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<i32>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<i64>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<i8>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<isize>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<u128>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<u16>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<u32>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<u64>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<u8>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for Wrapping<usize>

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for i128

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for i16

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for i32

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for i64

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for i8

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for isize

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for u128

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for u16

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for u32

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for u64

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign<usize> for u8

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl ShrAssign for usize

fn shr_assign(&mut self, other: usize)

Performs the >>= operation.

impl SimdElement for usize

type Mask = isize

🔬This is a nightly-only experimental API. (portable_simd #86656)

The mask element type corresponding to this element type.

impl<T> SliceIndex<[T]> for usize

The methods index and index_mut panic if the index is out of bounds.

type Output = T

The output type returned by methods.

fn get(self, slice: &[T]) -> Option<&T>

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, if in bounds.

fn get_mut(self, slice: &mut [T]) -> Option<&mut T>

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, if in bounds.

unsafe fn get_unchecked(self, slice: *const [T]) -> *const T

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a pointer to the output at this location, without performing any bounds checking.

unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut T

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable pointer to the output at this location, without performing any bounds checking.

fn index(self, slice: &[T]) -> &T

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, panicking if out of bounds.

fn index_mut(self, slice: &mut [T]) -> &mut T

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, panicking if out of bounds.

impl SliceIndex<ByteStr> for usize

type Output = u8

The output type returned by methods.

fn get(self, slice: &ByteStr) -> Option<&Self::Output>

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, if in bounds.

fn get_mut(self, slice: &mut ByteStr) -> Option<&mut Self::Output>

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, if in bounds.

unsafe fn get_unchecked(self, slice: *const ByteStr) -> *const Self::Output

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a pointer to the output at this location, without performing any bounds checking.

unsafe fn get_unchecked_mut(self, slice: *mut ByteStr) -> *mut Self::Output

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable pointer to the output at this location, without performing any bounds checking.

fn index(self, slice: &ByteStr) -> &Self::Output

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, panicking if out of bounds.

fn index_mut(self, slice: &mut ByteStr) -> &mut Self::Output

🔬This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, panicking if out of bounds.

impl Step for usize

fn forward(start: Self, n: usize) -> Self

🔬This is a nightly-only experimental API. (step_trait #42168)

Returns the value that would be obtained by taking the successor of self count times.

fn backward(start: Self, n: usize) -> Self

🔬This is a nightly-only experimental API. (step_trait #42168)

Returns the value that would be obtained by taking the predecessor of self count times.

unsafe fn forward_unchecked(start: Self, n: usize) -> Self

🔬This is a nightly-only experimental API. (step_trait #42168)

Returns the value that would be obtained by taking the successor of self count times.

unsafe fn backward_unchecked(start: Self, n: usize) -> Self

🔬This is a nightly-only experimental API. (step_trait #42168)

Returns the value that would be obtained by taking the predecessor of self count times.

fn steps_between(start: &Self, end: &Self) -> (usize, Option<usize>)

🔬This is a nightly-only experimental API. (step_trait #42168)

Returns the bounds on the number of successor steps required to get from start to end like Iterator::size_hint().

fn forward_checked(start: Self, n: usize) -> Option<Self>

🔬This is a nightly-only experimental API. (step_trait #42168)

Returns the value that would be obtained by taking the successor of self count times.

fn backward_checked(start: Self, n: usize) -> Option<Self>

🔬This is a nightly-only experimental API. (step_trait #42168)

Returns the value that would be obtained by taking the predecessor of self count times.

impl Sub<&usize> for &usize

type Output = <usize as Sub>::Output

The resulting type after applying the - operator.

fn sub(self, other: &usize) -> <usize as Sub<usize>>::Output

Performs the - operation.

impl Sub<&usize> for usize

type Output = <usize as Sub>::Output

The resulting type after applying the - operator.

fn sub(self, other: &usize) -> <usize as Sub<usize>>::Output

Performs the - operation.

impl Sub<usize> for &usize

type Output = <usize as Sub>::Output

The resulting type after applying the - operator.

fn sub(self, other: usize) -> <usize as Sub<usize>>::Output

Performs the - operation.

impl Sub for usize

type Output = usize

The resulting type after applying the - operator.

fn sub(self, other: usize) -> usize

Performs the - operation.

impl SubAssign<&usize> for Saturating<usize>

fn sub_assign(&mut self, other: &usize)

Performs the -= operation.

impl SubAssign<&usize> for Wrapping<usize>

fn sub_assign(&mut self, other: &usize)

Performs the -= operation.

impl SubAssign<&usize> for usize

fn sub_assign(&mut self, other: &usize)

Performs the -= operation.

impl SubAssign<usize> for Saturating<usize>

fn sub_assign(&mut self, other: usize)

Performs the -= operation.

impl SubAssign<usize> for Wrapping<usize>

fn sub_assign(&mut self, other: usize)

Performs the -= operation.

impl SubAssign for usize

fn sub_assign(&mut self, other: usize)

Performs the -= operation.

impl<'a> Sum<&'a usize> for usize

fn sum<I: Iterator<Item = &'a Self>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by “summing up” the items.

impl Sum for usize

fn sum<I: Iterator<Item = Self>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by “summing up” the items.

impl TryFrom<char> for usize

Maps a char with a code point from U+0000 to U+10FFFF (inclusive) to a usize in 0x0000..=0x10FFFF with the same value, failing if the final value is unrepresentable by usize.

Generally speaking, this conversion can be seen as obtaining the character’s corresponding UTF-32 code point to the extent representable by pointer addresses.

fn try_from(c: char) -> Result<usize, Self::Error>

Tries to convert a char into a usize.

Examples

let a = '\u{FFFF}'; // Always succeeds.
let b = '\u{10FFFF}'; // Conditionally succeeds.

assert_eq!(usize::try_from(a), Ok(0xFFFF));

if size_of::<usize>() >= size_of::<u32>() {
    assert_eq!(usize::try_from(b), Ok(0x10FFFF));
} else {
    assert!(matches!(usize::try_from(b), Err(_)));
}

type Error = TryFromCharError

The type returned in the event of a conversion error.

impl TryFrom<i128> for usize

fn try_from(u: i128) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<i16> for usize

fn try_from(u: i16) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<i32> for usize

fn try_from(u: i32) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<i64> for usize

fn try_from(u: i64) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<i8> for usize

fn try_from(u: i8) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<isize> for usize

fn try_from(u: isize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<u128> for usize

fn try_from(u: u128) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<u32> for usize

fn try_from(value: u32) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<u64> for usize

fn try_from(u: u64) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for Alignment

type Error = TryFromIntError

The type returned in the event of a conversion error.

fn try_from(align: usize) -> Result<Alignment, Self::Error>

Performs the conversion.

impl TryFrom<usize> for NonZero<usize>

fn try_from(value: usize) -> Result<Self, Self::Error>

Attempts to convert usize to NonZero<usize>.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for i128

fn try_from(value: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for i16

fn try_from(u: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for i32

fn try_from(u: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for i64

fn try_from(value: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for i8

fn try_from(u: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for isize

fn try_from(u: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for u128

fn try_from(value: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for u16

fn try_from(u: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for u32

fn try_from(value: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for u64

fn try_from(value: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<usize> for u8

fn try_from(u: usize) -> Result<Self, Self::Error>

Tries to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl UpperExp for usize

Available on neither WebAssembly.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl UpperHex for usize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Format unsigned integers in the radix.

impl ZeroablePrimitive for usize

type NonZeroInner = NonZeroUsizeInner

🔬This is a nightly-only experimental API. (nonzero_internals)

A type like Self but with a niche that includes zero.

impl ConstParamTy_ for usize

impl Copy for usize

impl Eq for usize

impl FloatToInt<usize> for f128

impl FloatToInt<usize> for f16

impl FloatToInt<usize> for f32

impl FloatToInt<usize> for f64

impl SimdCast for usize

impl StructuralPartialEq for usize

impl TrustedStep for usize

impl UseCloned for usize

impl VaArgSafe for usize