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 Iter1, ForwardIterator Iter2> 13eb564e76cc3904d811c981a50ecce0659f444cc9Howard Hinnant// requires HasEqualTo<Iter1::value_type, Iter2::value_type> 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// Iter1 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// search(Iter1 first1, Iter1 last1, Iter2 first2, Iter2 last2); 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <algorithm> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 2083e2c4d877fe2d7793868b1c6a5d9525a7c4d431Marshall Clow#include "test_iterators.h" 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantstruct count_equal 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static unsigned count; 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant template <class T> 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant bool operator()(const T& x, const T& y) 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant {++count; return x == y;} 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant}; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantunsigned count_equal::count = 0; 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class Iter1, class Iter2> 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest() 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ia[] = {0, 1, 2, 3, 4, 5}; 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sa = sizeof(ia)/sizeof(ia[0]); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia), Iter2(ia), count_equal()) == Iter1(ia)); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= 0); 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia), Iter2(ia+1), count_equal()) == Iter1(ia)); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sa); 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia+1), Iter2(ia+2), count_equal()) == Iter1(ia+1)); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sa); 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia+2), Iter2(ia+2), count_equal()) == Iter1(ia)); 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= 0); 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia+2), Iter2(ia+3), count_equal()) == Iter1(ia+2)); 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sa); 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia+2), Iter2(ia+3), count_equal()) == Iter1(ia+2)); 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sa); 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia), Iter2(ia+2), Iter2(ia+3), count_equal()) == Iter1(ia)); 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= 0); 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia+sa-1), Iter2(ia+sa), count_equal()) == Iter1(ia+sa-1)); 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sa); 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia+sa-3), Iter2(ia+sa), count_equal()) == Iter1(ia+sa-3)); 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sa*3); 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa), Iter2(ia), Iter2(ia+sa), count_equal()) == Iter1(ia)); 67bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sa*sa); 68bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 69bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+sa-1), Iter2(ia), Iter2(ia+sa), count_equal()) == Iter1(ia+sa-1)); 70bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= (sa-1)*sa); 71bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 72bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ia), Iter1(ia+1), Iter2(ia), Iter2(ia+sa), count_equal()) == Iter1(ia+1)); 73bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sa); 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 75bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ib[] = {0, 1, 2, 0, 1, 2, 3, 0, 1, 2, 3, 4}; 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sb = sizeof(ib)/sizeof(ib[0]); 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ic[] = {1}; 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ib), Iter1(ib+sb), Iter2(ic), Iter2(ic+1), count_equal()) == Iter1(ib+1)); 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sb); 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int id[] = {1, 2}; 82bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ib), Iter1(ib+sb), Iter2(id), Iter2(id+2), count_equal()) == Iter1(ib+1)); 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sb*2); 84bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ie[] = {1, 2, 3}; 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ib), Iter1(ib+sb), Iter2(ie), Iter2(ie+3), count_equal()) == Iter1(ib+4)); 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sb*3); 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 89bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ig[] = {1, 2, 3, 4}; 90bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ib), Iter1(ib+sb), Iter2(ig), Iter2(ig+4), count_equal()) == Iter1(ib+8)); 91bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sb*4); 92bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant count_equal::count = 0; 93bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ih[] = {0, 1, 1, 1, 1, 2, 3, 0, 1, 2, 3, 4}; 94bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sh = sizeof(ih)/sizeof(ih[0]); 95bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ii[] = {1, 1, 2}; 96bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::search(Iter1(ih), Iter1(ih+sh), Iter2(ii), Iter2(ii+3), count_equal()) == Iter1(ih+3)); 97bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(count_equal::count <= sh*3); 98bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 99bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 100bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 101bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 102bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, forward_iterator<const int*> >(); 103bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, bidirectional_iterator<const int*> >(); 104bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, random_access_iterator<const int*> >(); 105bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, forward_iterator<const int*> >(); 106bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >(); 107bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >(); 108bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, forward_iterator<const int*> >(); 109bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >(); 110bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, random_access_iterator<const int*> >(); 111bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 112