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// { dg-do run { target c++11 } }
// Copyright (C) 2008-2019 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/>.
// 20.8.3 Class template duration [time.duration]
#include <chrono>
#include <type_traits>
#include <testsuite_hooks.h>
template<typename T>
struct type_emulator
{
type_emulator()
: i(T(0)) { }
type_emulator(T j)
: i(j) { }
type_emulator(const type_emulator& e)
: i(e.i) { }
type_emulator&
operator*=(type_emulator a)
{
i *= a.i;
return *this;
}
type_emulator&
operator+=(type_emulator a)
{
i += a.i;
return *this;
}
operator T ()
{ return i; }
T i;
};
template<typename T>
bool
operator==(type_emulator<T> a, type_emulator<T> b)
{ return a.i == b.i; }
template<typename T>
bool
operator<(type_emulator<T> a, type_emulator<T> b)
{ return a.i < b.i; }
template<typename T>
type_emulator<T>
operator+(type_emulator<T> a, type_emulator<T> b)
{ return a += b; }
template<typename T>
type_emulator<T>
operator*(type_emulator<T> a, type_emulator<T> b)
{ return a *= b; }
namespace std
{
template<typename T, typename U>
struct common_type<type_emulator<T>, U>
{ typedef typename common_type<T,U>::type type; };
template<typename T, typename U>
struct common_type<U, type_emulator<T>>
{ typedef typename common_type<U,T>::type type; };
template<typename T, typename U>
struct common_type<type_emulator<T>, type_emulator<U>>
{ typedef typename common_type<T,U>::type type; };
namespace chrono
{
template<typename T>
struct treat_as_floating_point<type_emulator<T>>
: is_floating_point<T>
{ };
}
}
typedef type_emulator<int> int_emulator;
typedef type_emulator<double> dbl_emulator;
// 20.8.3.1 duration constructors [time.duration.cons]
void
test01()
{
using std::chrono::duration;
int r = 3;
duration<int> d1(r);
VERIFY(d1.count() == static_cast<duration<int>::rep>(r));
double s = 8.0;
duration<double> d2(s);
VERIFY(d2.count() == static_cast<duration<double>::rep>(s));
int_emulator ie(3);
duration<int_emulator> d3(ie);
VERIFY(d3.count() == static_cast<duration<int_emulator>::rep>(ie));
dbl_emulator de(4.0);
duration<dbl_emulator> d4(de);
VERIFY(d4.count() == static_cast<duration<dbl_emulator>::rep>(de));
}
int
main()
{
test01();
return 0;
}
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