File: cistrncmp.c

package info (click to toggle)
9base 2-3
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 2,116 kB
  • ctags: 3,521
  • sloc: ansic: 34,477; yacc: 1,623; makefile: 365; sh: 37; asm: 8
file content (28 lines) | stat: -rw-r--r-- 366 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
#include <u.h>
#include <libc.h>

int
cistrncmp(char *s1, char *s2, int n)
{
	int c1, c2;

	while(*s1 && n-- > 0){
		c1 = *(uchar*)s1++;
		c2 = *(uchar*)s2++;

		if(c1 == c2)
			continue;

		if(c1 >= 'A' && c1 <= 'Z')
			c1 -= 'A' - 'a';

		if(c2 >= 'A' && c2 <= 'Z')
			c2 -= 'A' - 'a';

		if(c1 != c2)
			return c1 - c2;
	}
	if(n <= 0)
		return 0;
	return -*s2;
}