Function test

code/strings/kmp.test.cpp:14–26

}

void test() {
  rep(it,0,8000) {
    string a = rand_string(1, 50),
        b = rand_string(1, 10000);
    size_t x = b.find(a);
    int ans = string_match(b, a);
    if (x == string::npos) {
      assert_equal(-1, ans);
    } else {
      assert_equal((int)x, ans);
    }
  }
}
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