mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 01:55:19 +00:00
109 lines
1.8 KiB
C
109 lines
1.8 KiB
C
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS system libraries
|
|
* FILE: lib/sdk/crt/mbstring/mbsncmp.c
|
|
* PURPOSE: Compares two strings to a maximum of n bytes or characters
|
|
* PROGRAMER: Ariadne
|
|
* UPDATE HISTORY:
|
|
* 12/04/99: Created
|
|
*/
|
|
|
|
#include <mbstring.h>
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
int _mbsncmp(const unsigned char *str1, const unsigned char *str2, size_t n)
|
|
{
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
int _mbsnbcmp(const unsigned char *str1, const unsigned char *str2, size_t n)
|
|
{
|
|
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;
|
|
}
|