/*** *ismbalnm - Test if character is alpha numeric (MBCS) * * Copyright (c) Microsoft Corporation. All rights reserved. * *Purpose: * Test if character is alpha numeric (MBCS) * *******************************************************************************/ #ifndef _MBCS #error This file should only be compiled with _MBCS defined #endif #include #include /*** * _ismbcalnum - Test if character is alpha numeric (MBCS) * *Purpose: * Test if the supplied character is alpha numeric or not. * Handles MBCS characters correctly. * * Note: Use test against 0x00FF instead of _ISLEADBYTE * to ensure that we don't call SBCS routine with a two-byte * value. * *Entry: * unsigned int c = character to test * *Exit: * Returns TRUE if c is an alpha numeric character; else FALSE * *Exceptions: * *******************************************************************************/ extern "C" int __cdecl _ismbcalnum_l(unsigned int const c, _locale_t const locale) { _LocaleUpdate locale_update(locale); if (c <= 0x00FF) { return _ismbbalnum_l(c, locale_update.GetLocaleT()); } return __dcrt_multibyte_check_type(c, locale_update.GetLocaleT(), _ALPHA | _DIGIT, true); } extern "C" int __cdecl _ismbcalnum(unsigned int const c) { return _ismbcalnum_l(c, nullptr); }