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, class T>
13 // ForwardIterator2
14 // replace_copy(ExecutionPolicy&& exec,
15 // ForwardIterator1 first, ForwardIterator1 last,
16 // ForwardIterator2 result,
17 // const T& old_value, const T& new_value);
18
19 #include <algorithm>
20 #include <array>
21 #include <cassert>
22 #include <vector>
23
24 #include "type_algorithms.h"
25 #include "test_execution_policies.h"
26 #include "test_iterators.h"
27
28 template <class Iter>
29 struct Test {
30 template <class ExecutionPolicy>
operator ()Test31 void operator()(ExecutionPolicy&& policy) {
32 { // simple test
33 std::array a = {1, 2, 3, 4, 5, 6, 7, 8};
34 std::array<int, a.size()> out;
35 std::replace_copy(policy, Iter(std::data(a)), Iter(std::data(a) + std::size(a)), Iter(std::data(out)), 3, 6);
36 assert((out == std::array{1, 2, 6, 4, 5, 6, 7, 8}));
37 }
38
39 { // empty range works
40 std::array<int, 0> a = {};
41 std::replace_copy(policy, Iter(std::data(a)), Iter(std::data(a) + std::size(a)), Iter(std::data(a)), 3, 6);
42 }
43
44 { // non-empty range without a match works
45 std::array a = {1, 2};
46 std::array<int, a.size()> out;
47 std::replace_copy(policy, Iter(std::data(a)), Iter(std::data(a) + std::size(a)), Iter(out.data()), 3, 6);
48 assert((out == std::array{1, 2}));
49 }
50
51 { // single element range works
52 std::array a = {3};
53 std::array<int, a.size()> out;
54 std::replace_copy(policy, Iter(std::data(a)), Iter(std::data(a) + std::size(a)), Iter(std::data(out)), 3, 6);
55 assert((out == std::array{6}));
56 }
57
58 { // two element range works
59 std::array a = {3, 4};
60 std::array<int, a.size()> out;
61 std::replace_copy(policy, Iter(std::data(a)), Iter(std::data(a) + std::size(a)), Iter(std::data(out)), 3, 6);
62 assert((out == std::array{6, 4}));
63 }
64
65 { // multiple matching elements work
66 std::array a = {1, 2, 3, 4, 3, 3, 5, 6, 3};
67 std::array<int, a.size()> out;
68 std::replace_copy(policy, Iter(std::data(a)), Iter(std::data(a) + std::size(a)), Iter(std::data(out)), 3, 9);
69 assert((out == std::array{1, 2, 9, 4, 9, 9, 5, 6, 9}));
70 }
71
72 { // large range works
73 std::vector<int> a(150, 3);
74 std::vector<int> out(a.size());
75 a[45] = 5;
76 std::replace_copy(policy, Iter(std::data(a)), Iter(std::data(a) + std::size(a)), Iter(out.data()), 3, 6);
77
78 std::vector<int> comp(150, 6);
79 comp[45] = 5;
80 assert(std::equal(out.begin(), out.end(), comp.begin()));
81 }
82 }
83 };
84
main(int,char **)85 int main(int, char**) {
86 types::for_each(types::forward_iterator_list<int*>{}, TestIteratorWithPolicies<Test>{});
87
88 return 0;
89 }
90