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

Include dependency graph for mbsnicmp.cpp:

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

	int (__cdecl _mbsnicmp)(const unsigned char *s1

Variables
const unsigned char *	s2

const unsigned char size_t	n

Function Documentation

◆ _mbsnicmp_l()

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

Definition at line 41 of file mbsnicmp.cpp.

{
        unsigned short c1, c2;
 
        if (n==0)
            return(0);
 
        _LocaleUpdate _loc_update(plocinfo);
        if (_loc_update.GetLocaleT()->mbcinfo->ismbcodepage == 0)
            return _strnicmp((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 (*s1 == '\0')
                    c1 = 0;
                else {
                    c1 = ((c1<<8) | *s1++);
 
                    if ( ((c1 >= _MBUPPERLOW1_MT(_loc_update.GetLocaleT())) &&
                          (c1 <= _MBUPPERHIGH1_MT(_loc_update.GetLocaleT()))) )
                        c1 += _MBCASEDIFF1_MT(_loc_update.GetLocaleT());
                    else if ( ((c1 >= _MBUPPERLOW2_MT(_loc_update.GetLocaleT())) &&
                               (c1 <= _MBUPPERHIGH2_MT(_loc_update.GetLocaleT()))) )
                        c1 += _MBCASEDIFF2_MT(_loc_update.GetLocaleT());
                }
            }
            else
                c1 = _mbbtolower_l(c1, _loc_update.GetLocaleT());
 
            c2 = *s2++;
            if ( _ismbblead_l(c2, _loc_update.GetLocaleT()) ) {
                if (*s2 == '\0')
                    c2 = 0;
                else {
                    c2 = ((c2<<8) | *s2++);
                    if ( ((c2 >= _MBUPPERLOW1_MT(_loc_update.GetLocaleT())) &&
                          (c2 <= _MBUPPERHIGH1_MT(_loc_update.GetLocaleT()))) )
                        c2 += _MBCASEDIFF1_MT(_loc_update.GetLocaleT());
                    else if ( ((c2 >= _MBUPPERLOW2_MT(_loc_update.GetLocaleT())) &&
                               (c2 <= _MBUPPERHIGH2_MT(_loc_update.GetLocaleT()))) )
                        c2 += _MBCASEDIFF2_MT(_loc_update.GetLocaleT());
                }
            }
            else
                c2 = _mbbtolower_l(c2, _loc_update.GetLocaleT());
 
            if (c1 != c2)
                return( (c1 > c2) ? 1 : -1 );
 
            if (c1 == 0)
                return(0);
        }
 
        return(0);
}