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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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mbslen.c
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C/C++ Source or Header
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1998-06-17
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1KB
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60 lines
/***
*mbslen.c - Find length of MBCS string
*
* Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Find length of MBCS string
*
*******************************************************************************/
#ifdef _MBCS
#include <mtdll.h>
#include <cruntime.h>
#include <string.h>
#include <mbdata.h>
#include <mbctype.h>
#include <mbstring.h>
/***
* _mbslen - Find length of MBCS string
*
*Purpose:
* Find the length of the MBCS string (in characters).
*
*Entry:
* unsigned char *s = string
*
*Exit:
* Returns the number of MBCS chars in the string
*
*Exceptions:
*
*******************************************************************************/
size_t __cdecl _mbslen(
const unsigned char *s
)
{
int n;
if ( _ISNOTMBCP )
return strlen(s);
_mlock(_MB_CP_LOCK);
for (n = 0; *s; n++, s++) {
if (_ISLEADBYTE(*s)) {
if (*++s == '\0')
break;
}
}
_munlock(_MB_CP_LOCK);
return(n);
}
#endif /* _MBCS */