mbclen.c File Reference

#include <precomp.h>
#include <mbstring.h>

Include dependency graph for mbclen.c:

Go to the source code of this file.

Functions
size_t	_mbclen (const unsigned char *s)
size_t	_mbclen2 (const unsigned int s)
int	mblen (const char *str, size_t size)
size_t __cdecl	mbrlen (const char *str, size_t len, mbstate_t *state)

Function Documentation

_mbclen()

size_t _mbclen

(

const unsigned char *

s

)

Definition at line 18 of file mbclen.c.

{
  return _ismbblead(*s) ? 2 : 1;
}

_mbclen2()

size_t _mbclen2

(

const unsigned int

s

)

Definition at line 23 of file mbclen.c.

{
  return (_ismbblead(s>>8) && _ismbbtrail(s&0x00FF)) ? 2 : 1;
}

Referenced by _mbsnbicmp(), _mbsnbset(), _mbsnicmp(), _mbsnset(), and _mbsset().

mblen()

int mblen	(	const char *	str,
		size_t	size
	)

Definition at line 33 of file mbclen.c.

{
  if (str && *str && size)
  {
    return !isleadbyte((unsigned char)*str) ? 1 : (size>1 ? 2 : -1);
  }
  return 0;
}

mbrlen()

size_t __cdecl mbrlen	(	const char *	str,
		size_t	len,
		mbstate_t *	state
	)

Definition at line 42 of file mbclen.c.

{
    mbstate_t s = (state ? *state : 0);
    size_t ret;
 
    if(!len || !str || !*str)
        return 0;
 
    if(get_locinfo()->mb_cur_max == 1) {
        return 1;
    }else if(!s && isleadbyte((unsigned char)*str)) {
        if(len == 1) {
            s = (unsigned char)*str;
            ret = -2;
        }else {
            ret = 2;
        }
    }else if(!s) {
        ret = 1;
    }else {
        s = 0;
        ret = 2;
    }
 
    if(state)
        *state = s;
    return ret;
}