Mercurial > hg > CbC > CbC_gcc
diff libstdc++-v3/testsuite/24_iterators/customization_points/92894.cc @ 152:2b5abeee2509
update gcc11
author | anatofuz |
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date | Mon, 25 May 2020 07:50:57 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libstdc++-v3/testsuite/24_iterators/customization_points/92894.cc Mon May 25 07:50:57 2020 +0900 @@ -0,0 +1,52 @@ +// 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); +}