mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-02 18:53:22 +00:00
103 lines
2.2 KiB
C++
103 lines
2.2 KiB
C++
// Copyright (C) 2014-2019 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 3, or (at your option)
|
|
// any later version.
|
|
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this library; see the file COPYING3. If not see
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
// { dg-do run { target c++14 } }
|
|
|
|
#include <experimental/functional>
|
|
#include <testsuite_hooks.h>
|
|
|
|
using std::experimental::not_fn;
|
|
|
|
int func(int, char) { return 0; }
|
|
|
|
struct F
|
|
{
|
|
bool operator()() { return false; }
|
|
bool operator()() const { return true; }
|
|
bool operator()(int) { return false; }
|
|
};
|
|
|
|
void
|
|
test01()
|
|
{
|
|
auto f1 = not_fn(func);
|
|
VERIFY( f1(1, '2') == true );
|
|
|
|
auto f2 = not_fn( [] { return true; } );
|
|
VERIFY( f2() == false );
|
|
|
|
auto f3 = not_fn( F{} );
|
|
VERIFY( f3() == true );
|
|
VERIFY( f3(1) == true );
|
|
const auto f4 = f3;
|
|
VERIFY( f4() == false );
|
|
}
|
|
|
|
template<typename F, typename Arg>
|
|
auto foo(F f, Arg arg) -> decltype(not_fn(f)(arg)) { return not_fn(f)(arg); }
|
|
|
|
template<typename F, typename Arg>
|
|
auto foo(F f, Arg arg) -> decltype(not_fn(f)()) { return not_fn(f)(); }
|
|
|
|
struct negator
|
|
{
|
|
bool operator()(int) const { return false; }
|
|
void operator()() const {}
|
|
};
|
|
|
|
void
|
|
test02()
|
|
{
|
|
foo(negator{}, 1); // PR libstdc++/66998
|
|
}
|
|
|
|
void
|
|
test03()
|
|
{
|
|
struct X { bool b; };
|
|
X x{ false };
|
|
VERIFY( not_fn(&X::b)(x) );
|
|
}
|
|
|
|
void
|
|
test04()
|
|
{
|
|
struct abstract { virtual void f() = 0; };
|
|
struct derived : abstract { void f() { } };
|
|
struct F { bool operator()(abstract&) { return false; } };
|
|
F f;
|
|
derived d;
|
|
VERIFY( not_fn(f)(d) );
|
|
}
|
|
|
|
void
|
|
test05()
|
|
{
|
|
auto nf = std::experimental::not_fn([] { return false; });
|
|
auto copy(nf); // PR libstdc++/70564
|
|
}
|
|
|
|
int
|
|
main()
|
|
{
|
|
test01();
|
|
test02();
|
|
test03();
|
|
test04();
|
|
test05();
|
|
}
|