//===----------------------------------------------------------------------===//
//
// 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>

// template<class charT, class traits, class Allocator>
//   bool operator<(const basic_string<charT,traits,Allocator>& lhs,
//                   basic_string_view<charT,traits> rhs);
//   bool operator<(basic_string_view<charT,traits> lhs,
//            const basic_string<charT,traits,Allocator>&  rhs);

#include <string_view>
#include <cassert>

template <class S>
void
test(const S& lhs, const typename S::value_type* rhs, bool x, bool y)
{
    assert((lhs < rhs) == x);
    assert((rhs < lhs) == y);
}

int main(int, char**)
{
    {
    typedef std::string_view S;
    test(S(""), "", false, false);
    test(S(""), "abcde", true, false);
    test(S(""), "abcdefghij", true, false);
    test(S(""), "abcdefghijklmnopqrst", true, false);
    test(S("abcde"), "", false, true);
    test(S("abcde"), "abcde", false, false);
    test(S("abcde"), "abcdefghij", true, false);
    test(S("abcde"), "abcdefghijklmnopqrst", true, false);
    test(S("abcdefghij"), "", false, true);
    test(S("abcdefghij"), "abcde", false, true);
    test(S("abcdefghij"), "abcdefghij", false, false);
    test(S("abcdefghij"), "abcdefghijklmnopqrst", true, false);
    test(S("abcdefghijklmnopqrst"), "", false, true);
    test(S("abcdefghijklmnopqrst"), "abcde", false, true);
    test(S("abcdefghijklmnopqrst"), "abcdefghij", false, true);
    test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", false, false);
    }

  return 0;
}