summaryrefslogtreecommitdiffstats
path: root/src/boost/libs/context/test/test_apply.cpp
blob: d6b1a20223a8f9778922c18cf846da184fe12c3b (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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
//          Copyright Oliver Kowalke 2009.
// 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)

#include <iostream>
#include <memory>
#include <sstream>
#include <stdexcept>
#include <string>
#include <tuple>
#include <utility>

#include <boost/assert.hpp>
#include <boost/test/unit_test.hpp>

#include <boost/context/detail/apply.hpp>
#include <boost/context/detail/config.hpp>

namespace ctx = boost::context;

struct callable {
    int k{ 0 };

    callable() = default;

    callable( int k_) :
        k{ k_ } {
    }

    int foo( int i, int j) const {
        return i + j + k;
    }

    int operator()( int i, int j) const {
        return foo( i, j);
    }
};

struct movable {
    int k{ 0 };

    movable() = default;

    movable( int k_) :
        k{ k_ } {
    }

    movable( movable const&) = delete;
    movable & operator=( movable const&) = delete;

    movable( movable && other) :
        k{ other.k } {
        other.k = -1;
    }

    movable & operator=( movable && other) {
        if ( this == & other) return * this;
        k = other.k;
        other.k = -1;
        return * this;
    }

    int foo( int i, int j) const {
        return i + j + k;
    }

    int operator()( int i, int j) const {
        return foo( i, j);
    }
};

int fn1( int i, int j) {
    return i + j;
}

int * fn2( int * ip) {
    return ip;
}

int * fn3( int & ir) {
    return & ir;
}

int & fn4( int & ir) {
    return ir;
}

int fn5( int i, callable && c) {
    return i + c.k;
}

int fn6( int i, movable && m) {
    return i + m.k;
}

void test1() {
    int result = ctx::detail::apply( fn1, std::make_tuple( 1, 2) );
    BOOST_CHECK_EQUAL( result, 3);
}

void test2() {
    {
        int i = 3;
        int * ip = & i;
        int * result = ctx::detail::apply( fn2, std::make_tuple( ip) );
        BOOST_CHECK_EQUAL( result, ip);
        BOOST_CHECK_EQUAL( * result, i);
    }
    {
        int i = 3;
        int * result = ctx::detail::apply( fn2, std::make_tuple( & i) );
        BOOST_CHECK_EQUAL( result, & i);
        BOOST_CHECK_EQUAL( * result, i);
    }
}

void test3() {
    {
        int i = 'c';
        int & ir = i;
        int * result = ctx::detail::apply( fn3, std::make_tuple( std::ref( ir) ) );
        BOOST_CHECK_EQUAL( result, & ir);
        BOOST_CHECK_EQUAL( * result, i);
    }
    {
        int i = 'c';
        int * result = ctx::detail::apply( fn3, std::make_tuple( std::ref( i) ) );
        BOOST_CHECK_EQUAL( result, & i);
        BOOST_CHECK_EQUAL( * result, i);
    }
}

void test4() {
    {
        int i = 3;
        int & ir = i;
        int & result = ctx::detail::apply( fn4, std::make_tuple( std::ref( ir) ) );
        BOOST_CHECK_EQUAL( result, ir);
        BOOST_CHECK_EQUAL( & result, & ir);
        BOOST_CHECK_EQUAL( result, i);
    }
    {
        int i = 3;
        int & result = ctx::detail::apply( fn4, std::make_tuple( std::ref( i) ) );
        BOOST_CHECK_EQUAL( & result, & i);
        BOOST_CHECK_EQUAL( result, i);
    }
}

void test5() {
    {
        callable c( 5);
        int result = ctx::detail::apply( fn5, std::make_tuple( 1, std::move( c) ) );
        BOOST_CHECK_EQUAL( result, 6);
        BOOST_CHECK_EQUAL( c.k, 5);
    }
    {
        movable m( 5);
        int result = ctx::detail::apply( fn6, std::make_tuple( 1, std::move( m) ) );
        BOOST_CHECK_EQUAL( result, 6);
        BOOST_CHECK_EQUAL( m.k, -1);
    }
}

void test6() {
    {
        callable c;
        int result = ctx::detail::apply( c, std::make_tuple( 1, 2) );
        BOOST_CHECK_EQUAL( result, 3);
        BOOST_CHECK_EQUAL( c.k, 0);
    }
    {
        callable c;
        int result = ctx::detail::apply( & callable::foo, std::make_tuple( c, 1, 2) );
        BOOST_CHECK_EQUAL( result, 3);
        BOOST_CHECK_EQUAL( c.k, 0);
    }
}

void test7() {
    {
        movable m;
        int result = ctx::detail::apply( std::move( m), std::make_tuple( 1, 2) );
        BOOST_CHECK_EQUAL( result, 3);
    }
    {
        movable m;
        int result = ctx::detail::apply( & movable::foo, std::make_tuple( std::move( m), 1, 2) );
        BOOST_CHECK_EQUAL( result, 3);
    }
}

boost::unit_test::test_suite * init_unit_test_suite( int, char* [])
{
    boost::unit_test::test_suite * test =
        BOOST_TEST_SUITE("Boost.Context: apply test suite");

    test->add( BOOST_TEST_CASE( & test1) );
    test->add( BOOST_TEST_CASE( & test2) );
    test->add( BOOST_TEST_CASE( & test3) );
    test->add( BOOST_TEST_CASE( & test4) );
    test->add( BOOST_TEST_CASE( & test5) );
    test->add( BOOST_TEST_CASE( & test6) );
    test->add( BOOST_TEST_CASE( & test7) );

    return test;
}