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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455/****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 <corecrt_internal_mbstring.h>#include <locale.h>
/**** _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);}