Function strnlen

examples/stdlib.c:2640–2646

}

static size_t strnlen(const char *s, size_t n)
{
    size_t m = 0;
    for (size_t i = 0; m < n && s[i] != '\0'; i++)
        m++;
    return m;
}

static int strncmp(const char *s1, const char *s2, size_t n)
{