Mercurial > hg > CbC > CbC_gcc
diff libstdc++-v3/testsuite/24_iterators/istream_iterator/cons/sentinel.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/istream_iterator/cons/sentinel.cc Mon May 25 07:50:57 2020 +0900 @@ -0,0 +1,36 @@ +// { dg-options "-std=gnu++2a" } +// { dg-do compile { target c++2a } } + +// 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/>. + +#include <iterator> +#include <istream> + +// C++20 doesn't require this to be non-throwing. +static_assert( std::is_nothrow_constructible_v<std::istream_iterator<int>, + std::default_sentinel_t> ); + +constexpr std::istream_iterator<int> i = std::default_sentinel; + +struct X { X() noexcept(false); }; +std::istream& operator<<(std::istream&, X&); + +static_assert( std::is_constructible_v<std::istream_iterator<X>, + std::default_sentinel_t> ); +static_assert( ! std::is_nothrow_constructible_v<std::istream_iterator<X>, + std::default_sentinel_t> );