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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182/****mbscoll.c - Collate MBCS strings** Copyright (c) Microsoft Corporation. All rights reserved.**Purpose:* Collate MBCS strings********************************************************************************/#ifndef _MBCS #error This file should only be compiled with _MBCS defined#endif
#include <corecrt_internal_mbstring.h>#include <locale.h>#include <string.h>
/**** _mbscoll - Collate MBCS strings**Purpose:* Collates two strings for lexical order. Strings* are collated on a character basis, not a byte basis.**Entry:* char *s1, *s2 = strings to collate**Exit:* Returns <0 if s1 < s2* Returns 0 if s1 == s2* Returns >0 if s1 > s2* Returns _NLSCMPERROR is something went wrong**Exceptions:* Input parameters are validated. Refer to the validation section of the function.********************************************************************************/
extern "C" int __cdecl _mbscoll_l( const unsigned char *s1, const unsigned char *s2, _locale_t plocinfo ){ int ret; _LocaleUpdate _loc_update(plocinfo);
/* validation section */ _VALIDATE_RETURN(s1 != nullptr, EINVAL, _NLSCMPERROR); _VALIDATE_RETURN(s2 != nullptr, EINVAL, _NLSCMPERROR);
if (_loc_update.GetLocaleT()->mbcinfo->ismbcodepage == 0) return _strcoll_l((const char *)s1, (const char *)s2, plocinfo);
if (0 == (ret = __acrt_CompareStringA( _loc_update.GetLocaleT(), _loc_update.GetLocaleT()->mbcinfo->mblocalename, SORT_STRINGSORT, (LPCSTR)s1, -1, (LPSTR)s2, -1, _loc_update.GetLocaleT()->mbcinfo->mbcodepage ))) { errno = EINVAL;
return _NLSCMPERROR; }
return ret - 2;
}
extern "C" int (__cdecl _mbscoll)( const unsigned char *s1, const unsigned char *s2 ){ return _mbscoll_l(s1, s2, nullptr);}