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99dee823 | 1 | // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
bc464641 PP |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
18 | // { dg-options "-std=gnu++2a" } | |
19 | // { dg-do run { target c++2a } } | |
20 | ||
21 | #include <algorithm> | |
22 | #include <testsuite_hooks.h> | |
23 | #include <testsuite_iterators.h> | |
24 | ||
25 | using __gnu_test::test_container; | |
26 | using __gnu_test::test_range; | |
27 | using __gnu_test::input_iterator_wrapper; | |
28 | using __gnu_test::output_iterator_wrapper; | |
29 | using __gnu_test::forward_iterator_wrapper; | |
30 | ||
31 | namespace ranges = std::ranges; | |
32 | ||
33 | struct X | |
34 | { | |
35 | int i; | |
36 | ||
37 | friend constexpr bool | |
38 | operator==(const X& a, const X& b) | |
39 | { | |
40 | return a.i == b.i; | |
41 | } | |
42 | }; | |
43 | ||
44 | void | |
45 | test01() | |
46 | { | |
47 | auto is_negative_p = [] (int a) { return a < 0; }; | |
48 | auto is_two_p = [] (int a) { return a == 2; }; | |
49 | ||
50 | { | |
51 | const X x[6] = { {2}, {2}, {6}, {8}, {10}, {11} }; | |
52 | X y[5]; | |
53 | X z[5] = { {9}, {9}, {6}, {8}, {10} }; | |
54 | auto [in, out] = ranges::replace_copy_if(x, x+5, y, | |
55 | is_two_p, X{9}, &X::i); | |
56 | VERIFY( in == x+5 && out == y+5 ); | |
57 | VERIFY( ranges::equal(y, z) ); | |
58 | } | |
59 | ||
60 | { | |
61 | const X x[6] = { {2}, {2}, {6}, {8}, {10}, {11} }; | |
62 | X y[5]; | |
63 | X z[5] = { {2}, {2}, {6}, {8}, {10} }; | |
64 | auto [in, out] = ranges::replace_copy_if(x, x+5, y, | |
65 | is_negative_p, X{9}, &X::i); | |
66 | VERIFY( in == x+5 && out == y+5 ); | |
67 | VERIFY( ranges::equal(x, x+5, y, y+5) && ranges::equal(y, z) ); | |
68 | } | |
69 | ||
70 | { | |
71 | X x[6] = { {2}, {2}, {6}, {8}, {10}, {11} }; | |
72 | X y[6]; | |
73 | X z[6] = { {7}, {7}, {6}, {8}, {10}, {11} }; | |
74 | test_container<X, forward_iterator_wrapper> cx(x), cy(y), cz(z); | |
75 | auto [in, out] = ranges::replace_copy_if(cx, cy.begin(), | |
76 | is_two_p, X{7}, &X::i); | |
77 | VERIFY( in == cx.end() && out == cy.end() ); | |
78 | VERIFY( ranges::equal(cy, cz) ); | |
79 | } | |
80 | ||
81 | { | |
82 | X x[6] = { {2}, {2}, {6}, {8}, {10}, {11} }; | |
83 | X y[6]; | |
84 | const X z[6] = { {7}, {7}, {6}, {8}, {10}, {11} }; | |
85 | test_range<X, input_iterator_wrapper> cx(x); | |
86 | test_range<X, output_iterator_wrapper> cy(y); | |
87 | auto [in, out] = ranges::replace_copy_if(cx, cy.begin(), | |
88 | is_two_p, X{7}, &X::i); | |
89 | VERIFY( in == cx.end() && out == cy.end() ); | |
90 | VERIFY( ranges::equal(y, z) ); | |
91 | } | |
92 | } | |
93 | ||
94 | struct Y { int i; int j; }; | |
95 | ||
96 | constexpr bool | |
97 | test02() | |
98 | { | |
99 | bool ok = true; | |
100 | Y x[] = { {3,2}, {2,4}, {3,6} }; | |
101 | Y y[] = { {4,5}, {2,4}, {4,5} }; | |
102 | Y z[] = { {4,5}, {2,4}, {4,5} }; | |
103 | auto [in, out] | |
104 | = ranges::replace_copy_if(x, y, | |
105 | [] (int a) { return a%2 == 1; }, Y{4,5}, &Y::i); | |
106 | ok &= in == x+3; | |
107 | ok &= out == y+3; | |
108 | ok &= ranges::equal(y, z, {}, &Y::i, &Y::i); | |
109 | ok &= ranges::equal(y, z, {}, &Y::j, &Y::j); | |
110 | return ok; | |
111 | } | |
112 | ||
113 | int | |
114 | main() | |
115 | { | |
116 | test01(); | |
117 | static_assert(test02()); | |
118 | } |