mirror of
https://github.com/Chuyu-Team/VC-LTL5.git
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mingkuang
104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
/***
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*towupper.cpp - convert wide character to upper case
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*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Defines towupper().
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*
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*******************************************************************************/
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#include <corecrt_internal.h>
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#include <ctype.h>
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#include <locale.h>
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/***
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*wint_t _towupper_l(c, ptloci) - convert wide character to upper case
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*
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*Purpose:
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* Multi-thread function only! Non-locking version of towupper.
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*
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*Entry:
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*
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*Exit:
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*
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*Exceptions:
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*
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*******************************************************************************/
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#if WindowsTargetPlatformMinVersion < WindowsTargetPlatformWindows6
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extern "C" wint_t __cdecl _towupper_l (
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wint_t c,
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_locale_t plocinfo
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)
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{
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wint_t widechar;
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if (c == WEOF)
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{
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return c;
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}
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if (!plocinfo)
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return towupper(c);
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//_LocaleUpdate _loc_update(plocinfo);
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/* if checking case of c does not require API call, do it */
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if ( c < 256 )
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{
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return _towupper_fast_internal(static_cast<unsigned char>(c), plocinfo);
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}
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if ( plocinfo->locinfo->lc_handle[LC_CTYPE] == 0 )
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{
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/* If the locale is C, then the only characters that would be transformed are <256
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and have been processed already. */
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return c;
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}
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/* convert wide char to uppercase */
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if ( 0 == __acrt_LCMapStringW(
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plocinfo->locinfo->lc_handle[LC_CTYPE],
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LCMAP_UPPERCASE,
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(LPCWSTR)&c,
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1,
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(LPWSTR)&widechar,
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1 ) )
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{
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return c;
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}
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return widechar;
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}
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_LCRT_DEFINE_IAT_SYMBOL(_towupper_l);
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#endif
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/***
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*wint_t towupper(c) - convert wide character to upper case
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*
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*Purpose:
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* towupper() returns the uppercase equivalent of its argument
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*
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*Entry:
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* c - wint_t value of character to be converted
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*
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*Exit:
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* if c is a lower case letter, returns wint_t value of upper case
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* representation of c. otherwise, it returns c.
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*
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*Exceptions:
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*
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*******************************************************************************/
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#if 0
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extern "C" wint_t __cdecl towupper (
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wint_t c
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)
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{
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return _towupper_l(c, nullptr);
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}
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#endif
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