xref: /reactos/sdk/lib/crt/mbstring/mbsnicmp.c (revision c2c66aff) 
1 #include <mbstring.h>
2 
3 
4 size_t _mbclen2(const unsigned int s);
5 unsigned int _mbbtoupper(unsigned int c);
6 
7 
8 /*
9  * @implemented
10  */
_mbsnicmp(const unsigned char * s1,const unsigned char * s2,size_t n)11 int _mbsnicmp(const unsigned char *s1, const unsigned char *s2, size_t n)
12 {
13   if (n == 0)
14     return 0;
15   do {
16     if (_mbbtoupper(*s1) != _mbbtoupper(*s2))
17       return _mbbtoupper(*(unsigned const char *)s1) - _mbbtoupper(*(unsigned const char *)s2);
18     s1 += _mbclen2(*s1);
19     s2 += _mbclen2(*s2);
20 
21     if (*s1 == 0)
22       break;
23     if (!_ismbblead(*s1))
24       n--;
25   } while (n > 0);
26   return 0;
27 }
28 
29 /*
30  * @implemented
31  */
_mbsnbicmp(const unsigned char * s1,const unsigned char * s2,size_t n)32 int _mbsnbicmp(const unsigned char *s1, const unsigned char *s2, size_t n)
33 {
34   if (n == 0)
35     return 0;
36   do {
37     if (_mbbtoupper(*s1) != _mbbtoupper(*s2))
38       return _mbbtoupper(*(unsigned const char *)s1) - _mbbtoupper(*(unsigned const char *)s2);
39     s1 += _mbclen2(*s1);
40     s2 += _mbclen2(*s2);
41 
42     if (*s1 == 0)
43       break;
44     n--;
45   } while (n > 0);
46   return 0;
47 }
48