Remove C++14-isms from C++11 tests
[official-gcc.git] / libstdc++-v3 / testsuite / 23_containers / list / 68222_neg.cc
blobcd33762e01adf00bef0538942fb489b4abea53c2
1 // Copyright (C) 2018 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.
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.
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/>.
18 // { dg-do compile { target c++11 } }
20 #include <list>
22 void
23 test01()
25 // A list of int.
26 const std::list<int> nums = { 1, 2, 3, 4 };
28 // Grab the iterator type.
29 using list_itr_type = decltype( std::begin( nums ) );
31 // Confirm cend returns the same type.
32 static_assert( std::is_same< decltype( std::end( nums ) ), list_itr_type >::value, "" );
34 // The list's iterator type provides a well-formed non-member operator-() with valid return type (long int)
35 using substraction_type
36 = decltype( std::declval<list_itr_type>() - std::declval<list_itr_type>() ); // { dg-error "no match for 'operator-'" }