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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Copyright (C) 2011,2014 Vicente J. Botet Escriba
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// <boost/thread/future.hpp>
// class promise<R>
// future<void> make_ready_future();
// template <class T>
// future<decay_t<T>> make_ready_future(T&&);
// template <class T>
// future<T> make_ready_future(remove_reference_t<T>&);
// template <class T>
// future<T> make_ready_future(remove_reference_t<T>&&);
// template <class T, class ...Args>
// future<T> make_ready_future(Args&& ... args);
#define BOOST_THREAD_VERSION 3
#include <boost/thread/future.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <boost/static_assert.hpp>
struct A
{
A() :
value(0)
{
}
A(int i) :
value(i)
{
}
A(int i, int j) :
value(i+j)
{
}
int value;
};
A make(int i) {
return A(i);
}
A make(int i, int j) {
return A(i, j);
}
struct movable2
{
int value_;
BOOST_THREAD_MOVABLE_ONLY(movable2)
movable2() : value_(1){}
movable2(int i) : value_(i){}
movable2(int i, int j) : value_(i+j){}
//Move constructor and assignment
movable2(BOOST_RV_REF(movable2) m)
{ value_ = m.value_; m.value_ = 0; }
movable2 & operator=(BOOST_THREAD_RV_REF(movable2) m)
{ value_ = m.value_; m.value_ = 0; return *this; }
bool moved() const //Observer
{ return !value_; }
int value() const //Observer
{ return value_; }
};
movable2 move_return_function2(int i) {
return movable2(i);
}
int main()
{
#if defined BOOST_NO_CXX11_RVALUE_REFERENCES
BOOST_STATIC_ASSERT((boost::is_copy_constructible<movable2>::value == false));
BOOST_STATIC_ASSERT((boost::has_move_emulation_enabled<movable2>::value == true));
BOOST_STATIC_ASSERT((boost::is_copy_constructible<A>::value == true));
BOOST_STATIC_ASSERT((boost::has_move_emulation_enabled<A>::value == false));
#endif
{
boost::future<void> f = boost::make_ready_future();
f.wait();
}
{
typedef A T;
T i;
boost::future<T> f = boost::make_ready_future(i);
BOOST_TEST(f.get().value==0);
}
#if ! defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
{
typedef A T;
boost::future<T> f = boost::make_ready_future<T>();
BOOST_TEST(f.get().value==0);
}
{
typedef A T;
boost::future<T> f = boost::make_ready_future<T>(1);
BOOST_TEST(f.get().value==1);
}
{
typedef A T;
boost::future<T> f = boost::make_ready_future<T>(1,2);
BOOST_TEST(f.get().value==3);
}
{
typedef A T;
T i;
boost::future<T&> f = boost::make_ready_future<T&>(i);
BOOST_TEST(f.get().value==0);
}
#endif
#if ! defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
// sync/futures/make_ready_future_pass.cpp:125:65: erreur: conversion from boost::future<boost::rv<movable2> > to non-scalar type boost::future<movable2> requested
{
typedef movable2 T;
T i;
boost::future<T> f = boost::make_ready_future(boost::move(i));
BOOST_TEST_EQ(f.get().value(),1);
}
#endif
#if ! defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
{
typedef movable2 T;
boost::future<T> f = boost::make_ready_future<T>();
BOOST_TEST(f.get().value()==1);
}
{
typedef movable2 T;
boost::future<T> f = boost::make_ready_future<T>(1);
BOOST_TEST(f.get().value()==1);
}
{
typedef movable2 T;
boost::future<T> f = boost::make_ready_future<T>(1,2);
BOOST_TEST(f.get().value()==3);
}
#endif
return boost::report_errors();
}
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