Retro68/gcc/newlib/libc/string/wcsxfrm.c
Wolfgang Thaller ec13cc9ce7 fix newlib
2018-12-29 09:59:36 +01:00

46 lines
1.2 KiB
C

/*
FUNCTION
<<wcsxfrm>>---locale-specific wide-character string transformation
INDEX
wcsxfrm
SYNOPSIS
#include <wchar.h>
int wcsxfrm(wchar_t *__restrict <[stra]>,
const wchar_t *__restrict <[strb]>, size_t <[n]>);
DESCRIPTION
<<wcsxfrm>> transforms the wide-character string pointed to by
<[strb]> to the wide-character string pointed to by <[stra]>,
Comparing two transformed wide strings with <<wcscmp>> should return
the same result as comparing the original strings with <<wcscoll>>.
No more than <[n]> wide characters are transformed, including the
trailing null character.
If <[n]> is 0, <[stra]> may be a NULL pointer.
(NOT Cygwin:) The current implementation of <<wcsxfrm>> simply uses
<<wcslcpy>> and does not support any language-specific transformations.
RETURNS
<<wcsxfrm>> returns the length of the transformed wide character
string. if the return value is greater or equal to <[n]>, the
content of <[stra]> is undefined.
PORTABILITY
<<wcsxfrm>> is ISO/IEC 9899/AMD1:1995 (ISO C).
*/
#include <_ansi.h>
#include <wchar.h>
size_t
wcsxfrm (wchar_t *__restrict a,
const wchar_t *__restrict b,
size_t n)
{
return wcslcpy (a, b, n);
}