mbsnextc.c

C标准库源代码,能提高对C的理解,不错的哦

/***
*mbsnextc.c - Get the next character in an MBCS string.
*
*       Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
*       To return the value of the next character in an MBCS string.
*
*******************************************************************************/

#ifdef _MBCS

#include <cruntime.h>
#include <mbdata.h>
#include <mbctype.h>
#include <mbstring.h>


/***
*_mbsnextc:  Returns the next character in a string.
*
*Purpose:
*       To return the value of the next character in an MBCS string.
*       Does not advance pointer to the next character.
*
*Entry:
*       unsigned char *s = string
*
*Exit:
*       unsigned int next = next character.
*
*Exceptions:
*
*******************************************************************************/

unsigned int __cdecl _mbsnextc(
    const unsigned char *s
    )
{
        unsigned int  next = 0;

        if (_ISLEADBYTE(*s))
            next = ((unsigned int) *s++) << 8;

        next += (unsigned int) *s;

        return(next);
}

#endif  /* _MBCS */