1// { dg-options "-std=gnu++11" } 2// { dg-do compile } 3 4// Copyright (C) 2012-2015 Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 3, or (at your option) 10// any later version. 11 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING3. If not see 19// <http://www.gnu.org/licenses/>. 20 21#include <functional> 22 23void* f(std::function<void()>) { return nullptr; } 24int f(std::function<void(int)>) { return 1; } 25 26void test01() 27{ 28 void* p __attribute__((unused)); 29 int i __attribute__((unused)); 30 31 p = f([] { }); 32 i = f([] (int) { }); 33} 34 35void g(std::function<void()>) { } 36void h(std::function<int(int)>) { } 37 38void test02() 39{ 40 g([] { return "ignored"; }); 41 h([] (char c) { return c; }); 42} 43 44int main() 45{ 46 test01(); 47 test02(); 48 49 return 0; 50} 51