windows-nt/Source/XPSP1/NT/base/crts/crtw32/misc/wsetloca.c
2020-09-26 16:20:57 +08:00

85 lines
2.1 KiB
C

/***
*wsetlocal.c - Contains the setlocale function (wchar_t version)
*
* Copyright (c) 1993-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Contains the _wsetlocale() function.
*
*Revision History:
* 10-29-93 CFW Module created.
* 01-03-94 CFW Fix for NULL locale string.
* 02-07-94 CFW POSIXify.
* 04-15-94 GJF Made definition off outwlocale conditional on
* DLL_FOR_WIN32S.
* 07-26-94 CFW Fix for bug #14663.
* 01-10-95 CFW Debug CRT allocs.
* 01-06-99 GJF Changes for 64-bit size_t.
* 05-13-99 PML Remove Win32s
*
*******************************************************************************/
#ifndef _POSIX_
#include <wchar.h>
#include <stdlib.h>
#include <setlocal.h>
#include <locale.h>
#include <dbgint.h>
wchar_t * __cdecl _wsetlocale (
int _category,
const wchar_t *_wlocale
)
{
size_t size;
char *inlocale = NULL;
char *outlocale;
static wchar_t *outwlocale = NULL;
/* convert WCS string into ASCII string */
if (_wlocale)
{
size = wcslen(_wlocale) + 1;
if (NULL == (inlocale = (char *)_malloc_crt(size * sizeof(char))))
return NULL;
if (-1 == wcstombs(inlocale, _wlocale, size))
{
_free_crt (inlocale);
return NULL;
}
}
/* set the locale and get ASCII return string */
outlocale = setlocale(_category, inlocale);
_free_crt (inlocale);
if (NULL == outlocale)
return NULL;
/* get space for WCS return value */
_free_crt(outwlocale);
if (-1 == (size = mbstowcs(NULL, outlocale, 0)))
return NULL;
size++;
if (NULL == (outwlocale = (wchar_t *)_malloc_crt(size * sizeof(wchar_t))))
return NULL;
/* convert return value to WCS */
if (-1 == mbstowcs(outwlocale, outlocale, size))
{
_free_crt(outwlocale);
return NULL;
}
return outwlocale;
}
#endif /* _POSIX_ */