Source code of Windows XP (NT5)
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/***
*strcoll.c - Collate locale strings
*
* Copyright (c) 1988-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Compare two strings using the locale LC_COLLATE information.
*
*Revision History:
* 03-21-89 JCR Module created.
* 06-20-89 JCR Removed _LOAD_DGROUP code
* 02-27-90 GJF Fixed calling type, #include <cruntime.h>, fixed
* copyright.
* 10-01-90 GJF New-style function declarator.
* 10-01-91 ETC Non-C locale support under _INTL switch.
* 12-09-91 ETC Updated api; added multithread.
* 08-19-92 KRS Activate NLS support.
* 09-02-92 SRW Get _INTL definition via ..\crt32.def
* 12-16-92 KRS Optimize for CompareStringW by using -1 for string len.
* 04-06-93 SKS Replace _CRTAPI* with __cdecl
* 04-14-93 CFW Error sets errno, cleanup.
* 06-02-93 SRW ignore _INTL if _NTSUBSET_ defined.
* 09-15-93 CFW Use ANSI conformant "__" names.
* 09-22-93 CFW Use __crtxxx internal NLS API wrapper.
* 09-29-93 GJF Merged NT SDK and Cuda versions.
* 11-09-93 CFW Use LC_COLLATE code page for __crtxxx() conversion.
* 04-11-93 CFW Change NLSCMPERROR to _NLCMPERROR.
* 09-06-94 CFW Remove _INTL switch.
* 10-24-94 GJF Sped up C locale, multi-thread case.
* 12-29-94 CFW Merge non-Win32.
* 09-26-95 GJF New locking macro, and scheme, for functions which
* reference the locale.
* 10-30-95 GJF Specify SORT_STRINGSORT to CompareString.
* 07-16-96 SKS Added missing call to _unlock_locale()
* 11-24-97 GJF Removed bogus codepage determination.
* 01-12-98 GJF Use _lc_collate_cp codepage.
* 08-10-98 GJF Revised multithread support based on threadlocinfo
* struct.
* 05-17-99 PML Remove all Macintosh support.
*
*******************************************************************************/
#include <cruntime.h>
#include <string.h>
#include <windows.h>
#include <stdlib.h>
#include <malloc.h>
#include <locale.h>
#include <setlocal.h>
#include <mtdll.h>
#include <errno.h>
#include <awint.h>
/***
*int strcoll() - Collate locale strings
*
*Purpose:
* Compare two strings using the locale LC_COLLATE information.
* [ANSI].
*
* Non-C locale support available under _INTL switch.
* In the C locale, strcoll() simply resolves to strcmp().
*Entry:
* const char *s1 = pointer to the first string
* const char *s2 = pointer to the second string
*
*Exit:
* Less than 0 = first string less than second string
* 0 = strings are equal
* Greater than 0 = first string greater than second string
*
*Exceptions:
* _NLSCMPERROR = error
* errno = EINVAL
*
*******************************************************************************/
int __cdecl strcoll (
const char *_string1,
const char *_string2
)
{
#if !defined(_NTSUBSET_)
int ret;
#ifdef _MT
pthreadlocinfo ptloci = _getptd()->ptlocinfo;
if ( ptloci != __ptlocinfo )
ptloci = __updatetlocinfo();
if ( ptloci->lc_handle[LC_COLLATE] == _CLOCALEHANDLE )
#endif
if ( __lc_handle[LC_COLLATE] == _CLOCALEHANDLE )
return strcmp(_string1, _string2);
#ifdef _MT
if ( 0 == (ret = __crtCompareStringA( ptloci->lc_handle[LC_COLLATE],
#else
if ( 0 == (ret = __crtCompareStringA( __lc_handle[LC_COLLATE],
#endif
SORT_STRINGSORT,
_string1,
-1,
_string2,
-1,
#ifdef _MT
ptloci->lc_collate_cp )) )
#else
__lc_collate_cp )) )
#endif
{
errno = EINVAL;
return _NLSCMPERROR;
}
return (ret - 2);
#else
return strcmp(_string1,_string2);
#endif
}