NAME¶

std::char_traits::move,std::char_traits::move, - std::char_traits::move,std::char_traits::move,

Synopsis¶

std::char_traits<char32_t>::move

static char_type*
move( char_type* dest, const char_type* src, (constexpr since C++20)
std::size_t count );

Copies count characters from the character string pointed to by src to the character
string pointed to by dest.

Performs correctly even if the ranges [src, src + count) and [dest, dest + count)
overlap.

See CharTraits for the general requirements on character traits for X::move.

Parameters¶

dest - pointer to a character string to copy to
src - pointer to a character string to copy from
count - the number of characters to copy

Return value¶

dest

Exceptions¶

Throws nothing.

Complexity¶

Linear in count.

Defect reports

The following behavior-changing defect reports were applied retroactively to
previously published C++ standards.

DR Applied to Behavior as published Correct behavior
the copy was guaranteed to perform correctly if
LWG 7 C++98 src is in [dest, dest + count), but not the other also guaranteed
way round (i.e. dest is in [src, src + count))