libstdc++-v3/testsuite/23_containers/multiset/cons/noexcept_move_construct.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // 2011-06-01  Paolo Carlini  <paolo.carlini@oracle.com>
   4 //
   5 // Copyright (C) 2011-2020 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <set>
  23
  24 typedef std::multiset<int> mstype;
  25
  26 static_assert( std::is_nothrow_move_constructible<mstype>::value,
  27                "noexcept move constructor" );
  28 static_assert( std::is_nothrow_constructible<mstype,
  29                mstype&&, const typename mstype::allocator_type&>::value,
  30                "noexcept move constructor with allocator" );
  31
  32 struct not_noexcept_less
  33 {
  34   not_noexcept_less() = default;
  35   not_noexcept_less(const not_noexcept_less&) /* noexcept */
  36   { }
  37
  38   bool
  39   operator()(int l, int r) const
  40   { return l < r; }
  41 };
  42
  43 typedef std::multiset<int, not_noexcept_less> emstype;
  44
  45 static_assert( !std::is_nothrow_constructible<emstype, emstype&&,
  46                const typename emstype::allocator_type&>::value,
  47                "except move constructor with allocator" );