s2++;
}
- return *s2 - *s1;
+ return (unsigned char)*s2 - (unsigned char)*s1;
}
int strncmp(const char *s1, const char *s2, int n)
if (i == n)
return 0;
- return *s2 - *s1;
+ return (unsigned char)*s2 - (unsigned char)*s1;
}
char *strchr(const char *s, int c)