// Copyright (C) 2020-2022 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
// .
// { dg-options "-std=gnu++2a" }
// { dg-do compile { target c++2a } }
#include
using namespace std;
// Define our own of version of indirectly_readable_impl here,
// to check the use of iter_move even if the real concept in
// no longer uses iter_move.
template
concept indirectly_readable_impl
= requires(const In in)
{
typename iter_value_t;
typename iter_reference_t;
typename iter_rvalue_reference_t;
{ *in } -> same_as>;
{ ranges::iter_move(in) } -> same_as>;
};
template requires indirectly_readable_impl>
void algo(T)
{ }
void
test01()
{
// PR libstdc++/92894
// Verify that the use of range::iter_move above doesn't cause odr-use of
// projected::operator* (which is not defined).
struct X { };
X a;
algo(a);
}