1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14
10 // UNSUPPORTED: libcpp-has-no-incomplete-pstl
11
12 // template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2,
13 // class Predicate, class T>
14 // ForwardIterator2
15 // replace_copy_if(ExecutionPolicy&& exec,
16 // ForwardIterator1 first, ForwardIterator1 last,
17 // ForwardIterator2 result,
18 // Predicate pred, const T& new_value);
19
20 #include <algorithm>
21 #include <array>
22 #include <cassert>
23 #include <vector>
24
25 #include "type_algorithms.h"
26 #include "test_execution_policies.h"
27 #include "test_iterators.h"
28
29 template <class Iter>
30 struct Test {
31 template <class ExecutionPolicy>
operator ()Test32 void operator()(ExecutionPolicy&& policy) {
33 { // simple test
34 std::array a = {1, 2, 3, 4, 5, 6, 7, 8};
35 std::array<int, a.size()> out;
36 std::replace_copy_if(
37 policy,
38 Iter(std::data(a)),
39 Iter(std::data(a) + std::size(a)),
40 Iter(std::data(out)),
41 [](int i) { return i == 3; },
42 6);
43 assert((out == std::array{1, 2, 6, 4, 5, 6, 7, 8}));
44 }
45
46 { // empty range works
47 std::array<int, 0> a = {};
48 std::replace_copy_if(
49 policy,
50 Iter(std::data(a)),
51 Iter(std::data(a) + std::size(a)),
52 Iter(std::data(a)),
53 [](int i) { return i == 3; },
54 6);
55 }
56
57 { // non-empty range without a match works
58 std::array a = {1, 2};
59 std::array<int, a.size()> out;
60 std::replace_copy_if(
61 policy,
62 Iter(std::data(a)),
63 Iter(std::data(a) + std::size(a)),
64 Iter(out.data()),
65 [](int i) { return i == 3; },
66 6);
67 assert((out == std::array{1, 2}));
68 }
69
70 { // single element range works
71 std::array a = {3};
72 std::array<int, a.size()> out;
73 std::replace_copy_if(
74 policy,
75 Iter(std::data(a)),
76 Iter(std::data(a) + std::size(a)),
77 Iter(std::data(out)),
78 [](int i) { return i == 3; },
79 6);
80 assert((out == std::array{6}));
81 }
82
83 { // two element range works
84 std::array a = {3, 4};
85 std::array<int, a.size()> out;
86 std::replace_copy_if(
87 policy,
88 Iter(std::data(a)),
89 Iter(std::data(a) + std::size(a)),
90 Iter(std::data(out)),
91 [](int i) { return i == 3; },
92 6);
93 assert((out == std::array{6, 4}));
94 }
95
96 { // multiple matching elements work
97 std::array a = {1, 2, 3, 4, 3, 3, 5, 6, 3};
98 std::array<int, a.size()> out;
99 std::replace_copy_if(
100 policy,
101 Iter(std::data(a)),
102 Iter(std::data(a) + std::size(a)),
103 Iter(std::data(out)),
104 [](int i) { return i == 3; },
105 9);
106 assert((out == std::array{1, 2, 9, 4, 9, 9, 5, 6, 9}));
107 }
108
109 { // large range works
110 std::vector<int> a(150, 3);
111 std::vector<int> out(a.size());
112 a[45] = 5;
113 std::replace_copy_if(
114 policy,
115 Iter(std::data(a)),
116 Iter(std::data(a) + std::size(a)),
117 Iter(out.data()),
118 [](int i) { return i == 3; },
119 6);
120
121 std::vector<int> comp(150, 6);
122 comp[45] = 5;
123 assert(std::equal(out.begin(), out.end(), comp.begin()));
124 }
125 }
126 };
127
main(int,char **)128 int main(int, char**) {
129 types::for_each(types::forward_iterator_list<int*>{}, TestIteratorWithPolicies<Test>{});
130
131 return 0;
132 }
133