libstdc++-v3/testsuite/20_util/unique_ptr/cons/deduction_neg.cc

   1 // Copyright (C) 2017-2023 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 <memory>
  21
  22 void
  23 test01()
  24 {
  25   std::unique_ptr<long> s;
  26   std::unique_ptr s2 = std::move(s); // OK
  27
  28   std::unique_ptr bad{new int}; // { dg-error "class template argument deduction failed" }
  29
  30   struct D { void operator()(double*) { } };
  31   std::unique_ptr bad2{new double, D()}; // { dg-error "class template argument deduction failed" }
  32 }
  33
  34 // { dg-error "no matching function" "" { target *-*-* } 28 }
  35 // { dg-error "no matching function" "" { target *-*-* } 31 }