1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <algorithm> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12eb564e76cc3904d811c981a50ecce0659f444cc9Howard Hinnant// template<ForwardIterator Iter, class T> 13eb564e76cc3904d811c981a50ecce0659f444cc9Howard Hinnant// requires OutputIterator<Iter, RvalueOf<Iter::reference>::type> 14eb564e76cc3904d811c981a50ecce0659f444cc9Howard Hinnant// && HasEqualTo<Iter::value_type, T> 1563be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow// constexpr Iter // constexpr after C++17 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// remove(Iter first, Iter last, const T& value); 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <algorithm> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <memory> 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 226b17a7ba2c6c549c679c18309dd8adce23425010Eric Fiselier#include "test_macros.h" 2383e2c4d877fe2d7793868b1c6a5d9525a7c4d431Marshall Clow#include "test_iterators.h" 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 2563be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow#if TEST_STD_VER > 17 2663be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall ClowTEST_CONSTEXPR bool test_constexpr() { 2763be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow int ia[] = {1, 3, 5, 2, 5, 6}; 2863be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow 2963be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow auto it = std::remove(std::begin(ia), std::end(ia), 5); 3063be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow 3163be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow return (std::begin(ia) + std::size(ia) - 2) == it // we removed two elements 3263be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow && std::none_of(std::begin(ia), it, [](int a) {return a == 5; }) 3363be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow ; 3463be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow } 3563be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow#endif 3663be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class Iter> 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest() 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ia[] = {0, 1, 2, 3, 4, 2, 3, 4, 2}; 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sa = sizeof(ia)/sizeof(ia[0]); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant Iter r = std::remove(Iter(ia), Iter(ia+sa), 2); 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(base(r) == ia + sa-3); 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ia[0] == 0); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ia[1] == 1); 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ia[2] == 3); 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ia[3] == 4); 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ia[4] == 3); 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ia[5] == 4); 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 536b17a7ba2c6c549c679c18309dd8adce23425010Eric Fiselier#if TEST_STD_VER >= 11 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class Iter> 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest1() 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sa = 9; 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::unique_ptr<int> ia[sa]; 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ia[0].reset(new int(0)); 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ia[1].reset(new int(1)); 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ia[3].reset(new int(3)); 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ia[4].reset(new int(4)); 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ia[6].reset(new int(3)); 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ia[7].reset(new int(4)); 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant Iter r = std::remove(Iter(ia), Iter(ia+sa), std::unique_ptr<int>()); 67bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(base(r) == ia + sa-3); 68bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*ia[0] == 0); 69bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*ia[1] == 1); 70bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*ia[2] == 3); 71bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*ia[3] == 4); 72bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*ia[4] == 3); 73bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(*ia[5] == 4); 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 756b17a7ba2c6c549c679c18309dd8adce23425010Eric Fiselier#endif // TEST_STD_VER >= 11 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<int*> >(); 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<int*> >(); 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<int*> >(); 82bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<int*>(); 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 846b17a7ba2c6c549c679c18309dd8adce23425010Eric Fiselier#if TEST_STD_VER >= 11 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test1<forward_iterator<std::unique_ptr<int>*> >(); 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test1<bidirectional_iterator<std::unique_ptr<int>*> >(); 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test1<random_access_iterator<std::unique_ptr<int>*> >(); 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test1<std::unique_ptr<int>*>(); 896b17a7ba2c6c549c679c18309dd8adce23425010Eric Fiselier#endif // TEST_STD_VER >= 11 9063be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow 9163be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow#if TEST_STD_VER > 17 9263be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow static_assert(test_constexpr()); 9363be4189d8899f4dfcbdf9d1eddabcfc33b1f1e4Marshall Clow#endif 94bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 95