libstdc++-v3/testsuite/23_containers/vector/92124.cc

   1 // Copyright (C) 2019-2025 Free Software Foundation, Inc.
   2 //
   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)
   7 // any later version.
   8
   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.
  13
  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/>.
  17
  18 // { dg-do run { target c++11 } }
  19
  20 #include <vector>
  21 #include <testsuite_allocator.h>
  22
  23 struct X {
  24     X() = default;
  25     X(const X&) = default;
  26
  27     // Move constructor might throw
  28     X(X&&) noexcept(false) {}
  29
  30     // Tracking calls to assignment functions
  31     X& operator=(const X&) { throw 1; }
  32
  33     X& operator=(X&&) noexcept(true) { return *this; }
  34 };
  35
  36 void
  37 test01()
  38 {
  39   using A = __gnu_test::propagating_allocator<X, false>;
  40   A a1(1), a2(2);
  41   std::vector<X, A> v1(1, a1), v2(1, a2);
  42   v1 = std::move(v2);
  43 }
  44
  45 int
  46 main()
  47 {
  48   test01();
  49 }