copy_if.pass.cpp revision 83e2c4d877fe2d7793868b1c6a5d9525a7c4d431
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<InputIterator InIter, OutputIterator<auto, InIter::reference> OutIter, 13eb564e76cc3904d811c981a50ecce0659f444cc9Howard Hinnant// Predicate<auto, InIter::value_type> Pred> 14eb564e76cc3904d811c981a50ecce0659f444cc9Howard Hinnant// requires CopyConstructible<Pred> 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// OutIter 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// copy_if(InIter first, InIter last, OutIter result, Pred pred); 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <algorithm> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 2183e2c4d877fe2d7793868b1c6a5d9525a7c4d431Marshall Clow#include "test_iterators.h" 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantstruct Pred 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant bool operator()(int i) {return i % 3 == 0;} 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant}; 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class InIter, class OutIter> 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest() 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned N = 1000; 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ia[N]; 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N; ++i) 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ia[i] = i; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ib[N] = {0}; 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant OutIter r = std::copy_if(InIter(ia), InIter(ia+N), OutIter(ib), Pred()); 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(base(r) == ib+N/3+1); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < N/3+1; ++i) 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ib[i] % 3 == 0); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, output_iterator<int*> >(); 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, input_iterator<int*> >(); 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, forward_iterator<int*> >(); 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, bidirectional_iterator<int*> >(); 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, random_access_iterator<int*> >(); 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, int*>(); 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, output_iterator<int*> >(); 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, input_iterator<int*> >(); 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, forward_iterator<int*> >(); 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, bidirectional_iterator<int*> >(); 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, random_access_iterator<int*> >(); 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, int*>(); 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, output_iterator<int*> >(); 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, input_iterator<int*> >(); 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, forward_iterator<int*> >(); 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >(); 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, random_access_iterator<int*> >(); 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, int*>(); 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 67bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, output_iterator<int*> >(); 68bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, input_iterator<int*> >(); 69bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, forward_iterator<int*> >(); 70bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, bidirectional_iterator<int*> >(); 71bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, random_access_iterator<int*> >(); 72bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, int*>(); 73bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, output_iterator<int*> >(); 75bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, input_iterator<int*> >(); 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, forward_iterator<int*> >(); 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, bidirectional_iterator<int*> >(); 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, random_access_iterator<int*> >(); 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, int*>(); 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 81