libstdc++-v3/testsuite/23_containers/vector/cons/89164_c++17.cc

   1 // Copyright (C) 2019-2024 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 compile { target c++17 } }
  19
  20 #include <vector>
  21
  22 // PR libstdc++/89164
  23
  24 struct X
  25 {
  26   X() = default;
  27   X(const X&) = delete;
  28 };
  29
  30 void test03()
  31 {
  32   // Can create initializer_list<Y> with C++17 guaranteed copy elision,
  33   // but shouldn't be able to copy from it with uninitialized_copy:
  34   std::vector<X> v3{X{}, X{}, X{}};   // { dg-error "here" "" { target c++17_only } }
  35   // { dg-error "deleted function .*X::X" "" { target c++20 } 0 }
  36 }
  37
  38 // { dg-error "must be constructible from input type" "" { target *-*-* } 0 }
  39 // { dg-prune-output "construct_at" }