60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
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/***
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*ismblgl.c - Tests to see if a given character is a legal MBCS char.
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*
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* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Tests to see if a given character is a legal MBCS character.
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*
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*Revision History:
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* 11-19-92 KRS Ported from 16-bit sources.
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* 10-05-93 GJF Replaced _CRTAPI1 with __cdecl.
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* 04-01-98 GJF Implemented multithread support based on threadmbcinfo
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* structs
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*
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*******************************************************************************/
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#ifdef _MBCS
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#include <mtdll.h>
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#include <cruntime.h>
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#include <mbdata.h>
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#include <mbctype.h>
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#include <mbstring.h>
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/***
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*int _ismbclegal(c) - tests for a valid MBCS character.
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*
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*Purpose:
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* Tests to see if a given character is a legal MBCS character.
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*
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*Entry:
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* unsigned int c - character to test
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*
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*Exit:
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* returns non-zero if Microsoft Kanji code, else 0
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*
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*Exceptions:
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*
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******************************************************************************/
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int __cdecl _ismbclegal(
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unsigned int c
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)
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{
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#ifdef _MT
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pthreadmbcinfo ptmbci = _getptd()->ptmbcinfo;
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if ( ptmbci != __ptmbcinfo )
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ptmbci = __updatetmbcinfo();
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return( (__ismbblead_mt(ptmbci, c >> 8)) &&
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(__ismbbtrail_mt(ptmbci, c & 0x0ff)) );
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#else
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return( (_ismbblead(c >> 8)) && (_ismbbtrail(c & 0377)) );
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#endif
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}
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#endif /* _MBCS */
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