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16 #define tostring(L,o) ((ttype(o) == LUA_TSTRING) || (luaV_tostring(L, o)))
18 #define tonumber(o,n) (ttype(o) == LUA_TNUMBER || \
19 (((o) = luaV_tonumber(o,n)) != NULL))
21 #define equalobj(L,o1,o2) \
22 (ttype(o1) == ttype(o2) && luaV_equalval(L, o1, o2))