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1 | // -*- C++ -*- |
2 | // Testing utilities for the rvalue reference. | |
3 | // | |
4 | // Copyright (C) 2005, 2007 Free Software Foundation, Inc. | |
5 | // | |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
9 | // Free Software Foundation; either version 2, or (at your option) | |
10 | // any later version. | |
11 | // | |
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | // | |
17 | // You should have received a copy of the GNU General Public License along | |
18 | // with this library; see the file COPYING. If not, write to the Free | |
19 | // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
20 | // USA. | |
21 | // | |
22 | // As a special exception, you may use this file as part of a free software | |
23 | // library without restriction. Specifically, if other files instantiate | |
24 | // templates or use macros or inline functions from this file, or you compile | |
25 | // this file and link it with other files to produce an executable, this | |
26 | // file does not by itself cause the resulting executable to be covered by | |
27 | // the GNU General Public License. This exception does not however | |
28 | // invalidate any other reasons why the executable file might be covered by | |
29 | // the GNU General Public License. | |
30 | ||
31 | #ifndef _GLIBCXX_TESTSUITE_RVALREF_H | |
32 | #define _GLIBCXX_TESTSUITE_RVALREF_H 1 | |
33 | ||
34 | #include <testsuite_hooks.h> | |
35 | ||
36 | namespace __gnu_test | |
37 | { | |
38 | ||
39 | // This class is designed to test libstdc++'s template-based rvalue | |
40 | // reference support. It should fail at compile-time if there is an attempt | |
41 | // to copy it (although see note just below). | |
42 | class rvalstruct | |
43 | { | |
44 | bool | |
45 | operator=(const rvalstruct&); | |
46 | ||
47 | // Normally we don't define a copy constructor, as any use of it would | |
48 | // show an inefficency. In some cases we know it will be aliased away | |
49 | // by the compiler, but it still insists it is defined, so we provide | |
50 | // a way of making it public but not giving a body, so any usage would | |
51 | // instead fail at link-time. | |
52 | #ifdef _GLIBCXX_TESTSUITE_ALLOW_RVALREF_ALIASING | |
53 | public: | |
54 | rvalstruct(const rvalstruct&); | |
55 | #else | |
56 | rvalstruct(const rvalstruct&); | |
57 | ||
58 | public: | |
59 | #endif | |
60 | int val; | |
61 | bool valid; | |
62 | ||
63 | rvalstruct() : valid(false) | |
64 | { } | |
65 | ||
66 | rvalstruct(int inval) : val(inval), valid(true) | |
67 | { } | |
68 | ||
69 | rvalstruct& | |
70 | operator=(int newval) | |
71 | { | |
72 | VERIFY(valid == false); | |
73 | val = newval; | |
74 | valid = true; | |
75 | } | |
76 | ||
77 | rvalstruct(rvalstruct&& in) | |
78 | { | |
79 | VERIFY(in.valid == true); | |
80 | val = in.val; | |
81 | in.valid = false; | |
82 | valid = true; | |
83 | } | |
84 | ||
85 | rvalstruct& | |
86 | operator=(rvalstruct&& in) | |
87 | { | |
88 | VERIFY(in.valid == true); | |
89 | val = in.val; | |
90 | in.valid = false; | |
91 | valid = true; | |
92 | return *this; | |
93 | } | |
94 | }; | |
95 | ||
96 | bool | |
97 | operator==(const rvalstruct& lhs, const rvalstruct& rhs) | |
98 | { return lhs.val == rhs.val; } | |
99 | ||
100 | bool | |
101 | operator<(const rvalstruct& lhs, const rvalstruct& rhs) | |
102 | { return lhs.val < rhs.val; } | |
103 | ||
104 | void | |
105 | swap(rvalstruct& lhs, rvalstruct& rhs) | |
106 | { | |
107 | VERIFY(lhs.valid && rhs.valid); | |
108 | int temp = lhs.val; | |
109 | lhs.val = rhs.val; | |
110 | rhs.val = temp; | |
111 | } | |
112 | ||
113 | // This is a moveable class which copies how many times it is copied. | |
114 | // This is mainly of use in the containers, where the an element inserted | |
115 | // into a container has to be copied once to get there, but we want to check | |
116 | // nothing else is copied. | |
117 | struct copycounter | |
118 | { | |
119 | static int copycount; | |
120 | int val; | |
121 | bool valid; | |
122 | ||
123 | copycounter() : val(0), valid(true) | |
124 | { } | |
125 | ||
126 | copycounter(int inval) : val(inval), valid(true) | |
127 | { } | |
128 | ||
129 | copycounter(const copycounter& in) : val(in.val), valid(true) | |
130 | { | |
131 | VERIFY(in.valid == true); | |
132 | ++copycount; | |
133 | } | |
134 | ||
135 | copycounter(copycounter&& in) | |
136 | { | |
137 | VERIFY(in.valid == true); | |
138 | val = in.val; | |
139 | in.valid = false; | |
140 | valid = true; | |
141 | } | |
142 | ||
143 | copycounter& | |
144 | operator=(int newval) | |
145 | { | |
146 | val = newval; | |
147 | valid = true; | |
148 | } | |
149 | ||
150 | bool | |
151 | operator=(const copycounter& in) | |
152 | { | |
153 | VERIFY(in.valid == true); | |
154 | ++copycount; | |
155 | val = in.val; | |
156 | valid = true; | |
157 | } | |
158 | ||
159 | copycounter& | |
160 | operator=(copycounter&& in) | |
161 | { | |
162 | VERIFY(in.valid == true); | |
163 | val = in.val; | |
164 | in.valid = false; | |
165 | valid = true; | |
166 | return *this; | |
167 | } | |
168 | ||
169 | ~copycounter() | |
170 | { valid = false; } | |
171 | }; | |
172 | ||
173 | int copycounter::copycount = 0; | |
174 | ||
175 | bool | |
176 | operator==(const copycounter& lhs, const copycounter& rhs) | |
177 | { return lhs.val == rhs.val; } | |
178 | ||
179 | bool | |
180 | operator<(const copycounter& lhs, const copycounter& rhs) | |
181 | { return lhs.val < rhs.val; } | |
182 | ||
183 | void | |
184 | swap(copycounter& lhs, copycounter& rhs) | |
185 | { | |
186 | VERIFY(lhs.valid && rhs.valid); | |
187 | int temp = lhs.val; | |
188 | lhs.val = rhs.val; | |
189 | rhs.val = temp; | |
190 | } | |
191 | ||
799a6e36 | 192 | } // namespace __gnu_test |
f5783e34 CJ |
193 | |
194 | #endif // _GLIBCXX_TESTSUITE_TR1_H |