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1 | // 2005-02-27 Douglas Gregor <doug.gregor -at- gmail.com> |
2 | // | |
a5544970 | 3 | // Copyright (C) 2005-2019 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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9 | // any later version. |
10 | // | |
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | // | |
16 | // You should have received a copy of the GNU General Public License along | |
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17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 2.1 reference wrappers | |
21 | #include <tr1/functional> | |
22 | #include <tr1/type_traits> | |
23 | #include <testsuite_hooks.h> | |
24 | #include <testsuite_tr1.h> | |
25 | ||
26 | using namespace __gnu_test; | |
27 | ||
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28 | struct X |
29 | { | |
30 | typedef int result_type; | |
31 | ||
32 | X() : bar(17) {} | |
33 | ||
34 | int foo(float x) { return truncate_float(x); } | |
35 | int foo_c(float x) const { return truncate_float(x); } | |
36 | int foo_v(float x) volatile { return truncate_float(x); } | |
37 | int foo_cv(float x) const volatile { return truncate_float(x); } | |
38 | ||
39 | int operator()(float x) | |
40 | { | |
41 | return foo(x) + 1; | |
42 | } | |
43 | ||
44 | int operator()(float x) const | |
45 | { | |
46 | return foo_c(x) + 2; | |
47 | } | |
48 | ||
49 | int bar; | |
50 | ||
51 | private: | |
52 | X(const X&); | |
53 | X& operator=(const X&); | |
54 | }; | |
55 | ||
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56 | int seventeen() { return 17; } |
57 | ||
58 | struct get_seventeen | |
59 | { | |
60 | typedef int result_type; | |
61 | int operator()() const { return 17; } | |
62 | }; | |
63 | ||
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64 | void test01() |
65 | { | |
66 | using std::tr1::ref; | |
67 | using std::tr1::cref; | |
68 | ||
3270a66b | 69 | ::get_seventeen get_sev; |
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70 | ::X x; |
71 | ::X* xp = &x; | |
72 | int (::X::* p_foo)(float) = &::X::foo; | |
73 | int (::X::* p_foo_c)(float) const = &::X::foo_c; | |
74 | int (::X::* p_foo_v)(float) volatile = &::X::foo_v; | |
75 | int (::X::* p_foo_cv)(float) const volatile = &::X::foo_cv; | |
76 | int ::X::* p_bar = &::X::bar; | |
77 | ||
78 | const float pi = 3.14; | |
79 | ||
80 | // Functions | |
81 | VERIFY(ref(truncate_float)(pi) == 3); | |
3270a66b | 82 | VERIFY(ref(seventeen)() == 17); |
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83 | |
84 | // Function pointers | |
85 | VERIFY(cref(&truncate_float)(pi) == 3); | |
3270a66b | 86 | VERIFY(cref(&seventeen)() == 17); |
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87 | |
88 | // Member function pointers | |
89 | VERIFY(ref(p_foo)(x, pi) == 3); | |
90 | VERIFY(ref(p_foo)(xp, pi) == 3); | |
91 | VERIFY(ref(p_foo_c)(x, pi) == 3); | |
92 | VERIFY(ref(p_foo_c)(xp, pi) == 3); | |
93 | VERIFY(ref(p_foo_v)(x, pi) == 3); | |
94 | VERIFY(ref(p_foo_v)(xp, pi) == 3); | |
95 | VERIFY(ref(p_foo_cv)(x, pi) == 3); | |
96 | VERIFY(ref(p_foo_cv)(xp, pi) == 3); | |
97 | ||
98 | // Member data pointers | |
99 | VERIFY(ref(p_bar)(x) == 17); | |
100 | VERIFY(ref(p_bar)(xp) == 17); | |
101 | ||
102 | // Function objects | |
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103 | VERIFY(ref(get_sev)() == 17); |
104 | VERIFY(cref(get_sev)() == 17); | |
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105 | VERIFY(ref(x)(pi) == 4); |
106 | VERIFY(cref(x)(pi) == 5); | |
107 | } | |
108 | ||
109 | int main() | |
110 | { | |
111 | test01(); | |
112 | return 0; | |
113 | } |