blob: dfce3cde74d7fcfe59aff9b48f9a3cfd4191ceb7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
//===----------------------------------------------------------------------===//
//
// 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();
}
|
