54 concept HasCopyIfR = requires(Range range, Out out) { std::ranges::copy_if(range, out, Func{}); };
72       std::array<int, 4> out;  in test_iterators()  local
76                                Out(out.data()),  in test_iterators()
78       assert(in == out);  in test_iterators()
80       assert(base(ret.out) == out.data() + out.size());  in test_iterators()
84       std::array<int, 4> out;  in test_iterators()  local
87           std::ranges::copy_if(range, Out(out.data()), [](int) { return true; });  in test_iterators()
88       assert(in == out);  in test_iterators()
90       assert(base(ret.out) == out.data() + out.size());  in test_iterators()
97       std::array<int, 0> out;  in test_iterators()  local
98 …auto ret = std::ranges::copy_if(In(in.data()), Sent(In(in.data())), Out(out.data()), [](int) { ret…  in test_iterators()
100       assert(base(ret.out) == out.data());  in test_iterators()
104       std::array<int, 0> out;  in test_iterators()  local
106       auto ret = std::ranges::copy_if(range, Out(out.data()), [](int) { return true; });  in test_iterators()
108       assert(base(ret.out) == out.data());  in test_iterators()
115       std::array<int, 4> out;  in test_iterators()  local
118                                       Out(out.data()),  in test_iterators()
120       assert((out == std::array{4, 6, 88, 44}));  in test_iterators()
122       assert(base(ret.out) == out.data() + out.size());  in test_iterators()
126       std::array<int, 4> out;  in test_iterators()  local
128       auto ret = std::ranges::copy_if(range, Out(out.data()), [](int i) { return i % 2 == 0; });  in test_iterators()
129       assert((out == std::array{4, 6, 88, 44}));  in test_iterators()
131       assert(base(ret.out) == out.data() + out.size());  in test_iterators()
162       std::array<S, 2> out;  in test()  local
163 …auto ret = std::ranges::copy_if(in.begin(), in.end(), out.begin(), [](int i) { return i == 3; }, &…  in test()
165       assert(ret.out == out.end());  in test()
166       assert(out[0].val == 3);  in test()
167       assert(out[0].other == 4);  in test()
168       assert(out[1].val == 3);  in test()
169       assert(out[1].other == 5);  in test()
174       std::array<S, 2> out;  in test()  local
175       auto ret = std::ranges::copy_if(in, out.begin(), [](int i) { return i == 3; }, &S::val);  in test()
177       assert(ret.out == out.end());  in test()
178       assert(out[0].val == 3);  in test()
179       assert(out[0].other == 4);  in test()
180       assert(out[1].val == 3);  in test()
181       assert(out[1].other == 5);  in test()
215       std::array<int, 4> out;  in test()  local
218       ProxyRange proxyOut{out};  in test()
222       assert((out == std::array{4, 6, 88, 44}));  in test()
226       std::array<int, 4> out;  in test()  local
229       ProxyRange proxyOut{out};  in test()
232       assert((out == std::array{4, 6, 88, 44}));  in test()