/*** *mbsnbico.c - Collate n bytes of strings, ignoring case (MBCS) * * Copyright (c) Microsoft Corporation. All rights reserved. * *Purpose: * Collate n bytes of strings, ignoring case (MBCS) * *******************************************************************************/ #ifndef _MBCS #error This file should only be compiled with _MBCS defined #endif #include #include /*** * _mbsnbicoll - Collate n bytes of strings, ignoring case (MBCS) * *Purpose: * Collates up to n bytes of two strings for lexical order. * Strings are collated on a character basis, not a byte basis. * Case of characters is not considered. * *Entry: * unsigned char *s1, *s2 = strings to collate * size_t n = maximum number of bytes 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 _mbsnbicoll_l( const unsigned char *s1, const unsigned char *s2, size_t n, _locale_t plocinfo ) { int ret; _LocaleUpdate _loc_update(plocinfo); if (n == 0) return 0; /* validation section */ _VALIDATE_RETURN(s1 != nullptr, EINVAL, _NLSCMPERROR); _VALIDATE_RETURN(s2 != nullptr, EINVAL, _NLSCMPERROR); _VALIDATE_RETURN(n <= INT_MAX, EINVAL, _NLSCMPERROR); if (_loc_update.GetLocaleT()->mbcinfo->ismbcodepage == 0) return _strnicoll_l((const char *)s1, (const char *)s2, n, plocinfo); if ( 0 == (ret = __acrt_CompareStringA(_loc_update.GetLocaleT(), _loc_update.GetLocaleT()->mbcinfo->mblocalename, SORT_STRINGSORT | NORM_IGNORECASE, (const char *)s1, (int)n, (char *)s2, (int)n, _loc_update.GetLocaleT()->mbcinfo->mbcodepage )) ) return _NLSCMPERROR; return ret - 2; } extern "C" int __cdecl _mbsnbicoll( const unsigned char *s1, const unsigned char *s2, size_t n ) { return _mbsnbicoll_l(s1, s2, n, nullptr); }