str_len.c

来自「It support IPv4 and IPv6 unicast and mul」· C语言 代码 · 共 15 行

#include "str.h"

unsigned int str_len(const char *s)
{
  register const char *t;

  t = s;
  for (;;) {
    if (!*t) return t - s; ++t;
    if (!*t) return t - s; ++t;
    if (!*t) return t - s; ++t;
    if (!*t) return t - s; ++t;
  }
}