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30 lines
816 B
30 lines
816 B
/* _Towlower -- convert wchar_t to lower case for Microsoft */
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#include <xlocinfo.h>
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#include <wchar.h>
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#include <awint.h>
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#include <setlocal.h>
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_STD_BEGIN
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_CRTIMP2 wchar_t __cdecl _Towlower(wchar_t _Ch,
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const _Ctypevec *_Ctype)
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{ /* convert element to lower case */
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wchar_t _Res = _Ch;
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if (_Ch == WEOF)
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;
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else if (_Ctype->_Hand == _CLOCALEHANDLE && _Ch < 256)
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{ /* handle ASCII character in C locale */
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if (L'A' <= _Ch && _Ch <= L'Z')
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_Res = (wchar_t)(_Ch - L'A' + L'a');
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}
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else if (__crtLCMapStringW(_Ctype->_Hand, LCMAP_LOWERCASE,
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&_Ch, 1, &_Res, 1, _Ctype->_Page) == 0)
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_Res = _Ch;
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return (_Res);
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}
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_STD_END
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/*
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* Copyright (c) 1992-2001 by P.J. Plauger. ALL RIGHTS RESERVED.
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* Consult your license regarding permissions and restrictions.
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V3.10:0009 */
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