| /* | |
| * strcmp.c | |
| */ | |
| #include <string.h> | |
| int strcmp(const char *s1, const char *s2) | |
| { | |
| const unsigned char *c1 = (const unsigned char *)s1; | |
| const unsigned char *c2 = (const unsigned char *)s2; | |
| unsigned char ch; | |
| int d = 0; | |
| while (1) { | |
| d = (int)(ch = *c1++) - (int)*c2++; | |
| if (d || !ch) | |
| break; | |
| } | |
| return d; | |
| } |