#include <corecrt_internal_mbstring.h>
#include <locale.h>

Include dependency graph for mbsnbcmp.cpp:

Functions
int __cdecl	_mbsnbcmp_l (const unsigned char s1, const unsigned char s2, size_t n, _locale_t plocinfo)

	int (__cdecl _mbsnbcmp)(const unsigned char *s1

Variables
const unsigned char *	s2

const unsigned char size_t	n

Function Documentation

◆ _mbsnbcmp_l()

int __cdecl _mbsnbcmp_l	(	const unsigned char *	s1,
		const unsigned char *	s2,
		size_t	n,
		_locale_t	plocinfo
	)

Definition at line 43 of file mbsnbcmp.cpp.

{
        unsigned short c1, c2;
 
        if (n==0)
                return(0);
 
        _LocaleUpdate _loc_update(plocinfo);
 
        if (_loc_update.GetLocaleT()->mbcinfo->ismbcodepage == 0)
            return strncmp((const char *)s1, (const char *)s2, n);
 
        /* validation section */
        _VALIDATE_RETURN(s1 != nullptr, EINVAL, _NLSCMPERROR);
        _VALIDATE_RETURN(s2 != nullptr, EINVAL, _NLSCMPERROR);
 
        while (n--) {
 
            c1 = *s1++;
            if ( _ismbblead_l(c1, _loc_update.GetLocaleT()) )
            {
                if (n==0)
                {
                    c1 = 0; /* 'naked' lead - end of string */
                    c2 = _ismbblead_l(*s2, _loc_update.GetLocaleT()) ? 0 : *s2;
                    goto test;
                }
                c1 = ( (*s1 == '\0') ? 0 : ((c1<<8) | *s1++) );
            }
 
            c2 = *s2++;
            if ( _ismbblead_l(c2, _loc_update.GetLocaleT()) )
            {
                if (n==0)
                {
                    c2 = 0; /* 'naked' lead - end of string */
                    goto test;
                }
                --n;
                c2 = ( (*s2 == '\0') ? 0 : ((c2<<8) | *s2++) );
            }
test:
            if (c1 != c2)
                return( (c1 > c2) ? 1 : -1);
 
            if (c1 == 0)
                return(0);
        }
 
        return(0);
}