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 // <algorithm> 10 11 // template<InputIterator InIter, OutputIterator<auto, InIter::reference> OutIter> 12 // constexpr OutIter // constexpr after C++17 13 // copy(InIter first, InIter last, OutIter result); 14 15 #include <algorithm> 16 #include <cassert> 17 18 #include "test_macros.h" 19 #include "test_iterators.h" 20 21 // #if TEST_STD_VER > 17 22 // TEST_CONSTEXPR bool test_constexpr() { 23 // int ia[] = {1, 2, 3, 4, 5}; 24 // int ic[] = {6, 6, 6, 6, 6, 6, 6}; 25 // 26 // auto p = std::copy(std::begin(ia), std::end(ia), std::begin(ic)); 27 // return std::equal(std::begin(ia), std::end(ia), std::begin(ic), p) 28 // && std::all_of(p, std::end(ic), [](int a){return a == 6;}) 29 // ; 30 // } 31 // #endif 32 33 template <class InIter, class OutIter> 34 void 35 test() 36 { 37 const unsigned N = 1000; 38 int ia[N]; 39 for (unsigned i = 0; i < N; ++i) 40 ia[i] = i; 41 int ib[N] = {0}; 42 43 OutIter r = std::copy(InIter(ia), InIter(ia+N), OutIter(ib)); 44 assert(base(r) == ib+N); 45 for (unsigned i = 0; i < N; ++i) 46 assert(ia[i] == ib[i]); 47 } 48 49 int main(int, char**) 50 { 51 test<input_iterator<const int*>, output_iterator<int*> >(); 52 test<input_iterator<const int*>, input_iterator<int*> >(); 53 test<input_iterator<const int*>, forward_iterator<int*> >(); 54 test<input_iterator<const int*>, bidirectional_iterator<int*> >(); 55 test<input_iterator<const int*>, random_access_iterator<int*> >(); 56 test<input_iterator<const int*>, int*>(); 57 58 test<forward_iterator<const int*>, output_iterator<int*> >(); 59 test<forward_iterator<const int*>, input_iterator<int*> >(); 60 test<forward_iterator<const int*>, forward_iterator<int*> >(); 61 test<forward_iterator<const int*>, bidirectional_iterator<int*> >(); 62 test<forward_iterator<const int*>, random_access_iterator<int*> >(); 63 test<forward_iterator<const int*>, int*>(); 64 65 test<bidirectional_iterator<const int*>, output_iterator<int*> >(); 66 test<bidirectional_iterator<const int*>, input_iterator<int*> >(); 67 test<bidirectional_iterator<const int*>, forward_iterator<int*> >(); 68 test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >(); 69 test<bidirectional_iterator<const int*>, random_access_iterator<int*> >(); 70 test<bidirectional_iterator<const int*>, int*>(); 71 72 test<random_access_iterator<const int*>, output_iterator<int*> >(); 73 test<random_access_iterator<const int*>, input_iterator<int*> >(); 74 test<random_access_iterator<const int*>, forward_iterator<int*> >(); 75 test<random_access_iterator<const int*>, bidirectional_iterator<int*> >(); 76 test<random_access_iterator<const int*>, random_access_iterator<int*> >(); 77 test<random_access_iterator<const int*>, int*>(); 78 79 test<const int*, output_iterator<int*> >(); 80 test<const int*, input_iterator<int*> >(); 81 test<const int*, forward_iterator<int*> >(); 82 test<const int*, bidirectional_iterator<int*> >(); 83 test<const int*, random_access_iterator<int*> >(); 84 test<const int*, int*>(); 85 86 // #if TEST_STD_VER > 17 87 // static_assert(test_constexpr()); 88 // #endif 89 90 return 0; 91 } 92