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comparison libstdc++-v3/testsuite/24_iterators/istream_iterator/cons/sentinel.cc @ 152:2b5abeee2509

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update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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145:1830386684a0 152:2b5abeee2509
1 // { dg-options "-std=gnu++2a" }
2 // { dg-do compile { target c++2a } }
3
4 // Copyright (C) 2020 Free Software Foundation, Inc.
5 //
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
10 // any later version.
11
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3. If not see
19 // <http://www.gnu.org/licenses/>.
20
21 #include <iterator>
22 #include <istream>
23
24 // C++20 doesn't require this to be non-throwing.
25 static_assert( std::is_nothrow_constructible_v<std::istream_iterator<int>,
26 std::default_sentinel_t> );
27
28 constexpr std::istream_iterator<int> i = std::default_sentinel;
29
30 struct X { X() noexcept(false); };
31 std::istream& operator<<(std::istream&, X&);
32
33 static_assert( std::is_constructible_v<std::istream_iterator<X>,
34 std::default_sentinel_t> );
35 static_assert( ! std::is_nothrow_constructible_v<std::istream_iterator<X>,
36 std::default_sentinel_t> );