std::char_traits<char>::move, std::char_traits<wchar_t>::move, std::char_traits<char8_t>::move, std::char_traits<char16_t>::move, std::char_traits<char32_t>::

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

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 )

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