Mercurial > hg > CbC > CbC_gcc
view libstdc++-v3/testsuite/24_iterators/customization_points/92894.cc @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 2b5abeee2509 |
children |
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// Copyright (C) 2020 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-options "-std=gnu++2a" } // { dg-do compile { target c++2a } } #include <iterator> 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 // <bits/iterator_concepts.h> no longer uses iter_move. template<class In> concept indirectly_readable_impl = requires(const In in) { typename iter_value_t<In>; typename iter_reference_t<In>; typename iter_rvalue_reference_t<In>; { *in } -> same_as<iter_reference_t<In>>; { ranges::iter_move(in) } -> same_as<iter_rvalue_reference_t<In>>; }; template<class T> requires indirectly_readable_impl<projected<T*, identity>> void algo(T) { } void test01() { // PR libstdc++/92894 // Verify that the use of range::iter_move above doesn't cause odr-use of // projected<local-class-type, identity>::operator* (which is not defined). struct X { }; X a; algo(a); }