libstdc++-v3/testsuite/20_util/pair/70437.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2016-2020 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <utility>
  21
  22 template <class T> struct B;
  23
  24 template <class T> struct A
  25 {
  26   A(A&&) = default;
  27   A(const B<T> &);
  28 };
  29
  30 template <class T> struct B
  31 {
  32   std::pair<A<T>,int> a;
  33   B(B&&) = default;
  34 };
  35
  36 bool b = std::is_move_constructible<A<int> >::value;