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1 // Copyright (C) 2019-2021 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // { dg-options "-std=gnu++2a" }
19 // { dg-do compile { target c++2a } }
22 #include <testsuite_hooks.h>
24 // This test is an adaptation of 24_iterators/move_iterator/cust.cc.
31 constexpr X(int i
) noexcept
: i(i
) { }
32 constexpr X(X
&& x
) noexcept
: i(x
.i
) { x
.i
= -1; }
33 constexpr X
& operator=(X
&& x
) noexcept
{ i
= x
.i
; x
.i
= 0; return *this; }
38 std::reverse_iterator
<X
*> i(arr
+ 1), j(arr
+ 2);
39 static_assert(noexcept(std::ranges::iter_swap(i
, j
)));
40 std::ranges::iter_swap(i
, j
);
41 VERIFY( arr
[0].i
== 2 );
42 VERIFY( arr
[1].i
== 1 );
44 static_assert(noexcept(std::ranges::iter_move(i
)));
45 X x
= std::ranges::iter_move(i
);
46 VERIFY( arr
[0].i
== -1 );
52 static_assert(test01());