text: //===----------------------------------------------------------------------===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  // <string>
  
  // we get this comparison "for free" because the string implicitly converts to the string_view
  
  #include <string>
  #include <cassert>
  
  #include "test_macros.h"
  #include "min_allocator.h"
  
  template <class S, class SV>
  TEST_CONSTEXPR_CXX20 void
  test(const S& lhs, SV rhs, bool x)
  {
      assert((lhs == rhs) == x);
  }
  
  bool test() {
    {
      typedef std::string S;
      typedef std::string_view SV;
      test(S(""), SV(""), true);
      test(S(""), SV("abcde"), false);
      test(S(""), SV("abcdefghij"), false);
      test(S(""), SV("abcdefghijklmnopqrst"), false);
      test(S("abcde"), SV(""), false);
      test(S("abcde"), SV("abcde"), true);
      test(S("abcde"), SV("abcdefghij"), false);
      test(S("abcde"), SV("abcdefghijklmnopqrst"), false);
      test(S("abcdefghij"), SV(""), false);
      test(S("abcdefghij"), SV("abcde"), false);
      test(S("abcdefghij"), SV("abcdefghij"), true);
      test(S("abcdefghij"), SV("abcdefghijklmnopqrst"), false);
      test(S("abcdefghijklmnopqrst"), SV(""), false);
      test(S("abcdefghijklmnopqrst"), SV("abcde"), false);
      test(S("abcdefghijklmnopqrst"), SV("abcdefghij"), false);
      test(S("abcdefghijklmnopqrst"), SV("abcdefghijklmnopqrst"), true);
    }
  #if TEST_STD_VER >= 11
    {
      typedef std::basic_string     <char, std::char_traits<char>, min_allocator<char>> S;
      typedef std::basic_string_view<char, std::char_traits<char>> SV;
      test(S(""), SV(""), true);
      test(S(""), SV("abcde"), false);
      test(S(""), SV("abcdefghij"), false);
      test(S(""), SV("abcdefghijklmnopqrst"), false);
      test(S("abcde"), SV(""), false);
      test(S("abcde"), SV("abcde"), true);
      test(S("abcde"), SV("abcdefghij"), false);
      test(S("abcde"), SV("abcdefghijklmnopqrst"), false);
      test(S("abcdefghij"), SV(""), false);
      test(S("abcdefghij"), SV("abcde"), false);
      test(S("abcdefghij"), SV("abcdefghij"), true);
      test(S("abcdefghij"), SV("abcdefghijklmnopqrst"), false);
      test(S("abcdefghijklmnopqrst"), SV(""), false);
      test(S("abcdefghijklmnopqrst"), SV("abcde"), false);
      test(S("abcdefghijklmnopqrst"), SV("abcdefghij"), false);
      test(S("abcdefghijklmnopqrst"), SV("abcdefghijklmnopqrst"), true);
    }
  #endif
  
    return true;
  }
  
  int main(int, char**)
  {
    test();
  #if TEST_STD_VER > 17
    // static_assert(test());
  #endif
  
    return 0;
  }
  