libstdc++: Remove dg-options "-std=gnu++20" from 20_utils tests

[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 20_util / function_objects / bind_front / 97101.cc

// Copyright (C) 2020-2023 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// { dg-do compile { target c++20 } }

#include <functional>

void
test01()
{
  struct F1
  {
    void operator()() { }
  };

  struct F2
  {
    F2() = default;
    F2(const F2&) noexcept(false) { }
    void operator()() { }
  };

  // PR libstdc++/97101
  static_assert( noexcept(std::bind_front(F1{})) );
  static_assert( ! noexcept(std::bind_front(F2{})) );
}