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// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008, 2009 Free Software Foundation
//
// 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()
{
bool test __attribute__((unused)) = true;
using namespace std::chrono;
duration<int> d0(3);
duration<int> d0_copy(d0);
VERIFY(d0_copy.count() == d0.count());
duration<int, std::milli> d1(5);
duration<int, std::micro> d1_copy(d1);
VERIFY(d1.count() * 1000 == d1_copy.count());
duration<double, std::micro> d2(8.0);
duration<double, std::milli> d2_copy(d2);
VERIFY(d2.count() == d2_copy.count() * 1000.0);
duration<int_emulator, std::milli> d3(5);
duration<int_emulator, std::micro> d3_copy(d3);
VERIFY(d3.count() * 1000 == d3_copy.count());
duration<dbl_emulator, std::micro> d4(5.0);
duration<dbl_emulator, std::milli> d4_copy(d4);
VERIFY(d4.count() == d4_copy.count() * dbl_emulator(1000.0));
}
int
main()
{
test01();
return 0;
}
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