libstdc++-v3/testsuite/20_util/is_constructible/value.cc

   1 // { dg-do compile { target c++11 } }
   2 // Copyright (C) 2009-2024 Free Software Foundation, Inc.
   3 //
   4 // This file is part of the GNU ISO C++ Library.  This library is free
   5 // software; you can redistribute it and/or modify it under the
   6 // terms of the GNU General Public License as published by the
   7 // Free Software Foundation; either version 3, or (at your option)
   8 // any later version.
   9 //
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License along
  16 // with this library; see the file COPYING3.  If not see
  17 // <http://www.gnu.org/licenses/>.
  18
  19 #include <type_traits>
  20 #include <testsuite_tr1.h>
  21
  22 void test01()
  23 {
  24   using std::is_constructible;
  25   using namespace __gnu_test;
  26
  27   // Positive tests.
  28   static_assert(test_property<is_constructible,
  29                 ExplicitClass, double&>(true), "");
  30   static_assert(test_property<is_constructible, ExplicitClass, int&>(true), "");
  31
  32   // Negative tests.
  33   static_assert(test_property<is_constructible,
  34                 ExplicitClass, void*>(false), "");
  35   static_assert(test_property<is_constructible, ExplicitClass>(false), "");
  36   static_assert(test_property<is_constructible, ExplicitClass,
  37                 int, double>(false), "");
  38   static_assert(test_property<is_constructible, int[]>(false), "PR c++/90532");
  39   static_assert(test_property<is_constructible,
  40                 __gnu_test::construct::Empty[]>(false), "PR c++/90532");
  41   static_assert(test_property<is_constructible,
  42                 __gnu_test::construct::Ukn[]>(false), "PR c++/90532");
  43   static_assert(test_property<is_constructible,
  44                 __gnu_test::construct::nAny[]>(false), "PR c++/90532");
  45 }