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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 Ôboost::future<boost::rv<movable2> >Õ to non-scalar type Ôboost::future<movable2>Õ 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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