mbsncmp.c File Reference

#include <mbstring.h>

Include dependency graph for mbsncmp.c:

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Functions
int	_mbsncmp (const unsigned char *str1, const unsigned char *str2, size_t n)
int	_mbsnbcmp (const unsigned char *str1, const unsigned char *str2, size_t n)

Function Documentation

_mbsnbcmp()

int _mbsnbcmp	(	const unsigned char *	str1,
		const unsigned char *	str2,
		size_t	n
	)

Definition at line 65 of file mbsncmp.c.

{
    unsigned char *s1 = (unsigned char *)str1;
    unsigned char *s2 = (unsigned char *)str2;

    unsigned short *short_s1, *short_s2;

    int l1, l2;

    if (n == 0)
        return 0;
    do {

        if (*s1 == 0)
            break;

        l1 = _ismbblead(*s1);
        l2 = _ismbblead(*s2);
        if ( !l1 &&  !l2  ) {

            if (*s1 != *s2)
                return *s1 - *s2;
            else {
                s1 += 1;
                s2 += 1;
                n--;
            }
        }
        else if ( l1 && l2 ){
            short_s1 = (unsigned short *)s1;
            short_s2 = (unsigned short *)s2;
            if ( *short_s1 != *short_s2 )
                return *short_s1 - *short_s2;
            else {
                s1 += 2;
                s2 += 2;
                n-=2;

            }
        }
        else
            return *s1 - *s2;
    } while (n > 0);
    return 0;
}

_mbsncmp()

int _mbsncmp	(	const unsigned char *	str1,
		const unsigned char *	str2,
		size_t	n
	)

Definition at line 16 of file mbsncmp.c.

{
    unsigned char *s1 = (unsigned char *)str1;
    unsigned char *s2 = (unsigned char *)str2;

    unsigned short *short_s1, *short_s2;

    int l1, l2;

    if (n == 0)
        return 0;
    do {

        if (*s1 == 0)
            break;

        l1 = _ismbblead(*s1);
        l2 = _ismbblead(*s2);
        if ( !l1 &&  !l2  ) {

            if (*s1 != *s2)
                return *s1 - *s2;
            else {
                s1 += 1;
                s2 += 1;
                n--;
            }
        }
        else if ( l1 && l2 ){
            short_s1 = (unsigned short *)s1;
            short_s2 = (unsigned short *)s2;
            if ( *short_s1 != *short_s2 )
                return *short_s1 - *short_s2;
            else {
                s1 += 2;
                s2 += 2;
                n--;

            }
        }
        else
            return *s1 - *s2;
    } while (n > 0);
    return 0;
}