reverse.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02
1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// ��������������������The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// This file is distributed under the University of Illinois Open Source 6bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// License. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <algorithm> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template<BidirectionalIterator Iter> 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// requires HasSwap<Iter::reference, Iter::reference> 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// void 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// reverse(Iter first, Iter last); 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <algorithm> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include "../../iterators.h" 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class Iter> 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest() 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ia[] = {0}; 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sa = sizeof(ia)/sizeof(ia[0]); 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::reverse(Iter(ia), Iter(ia)); 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ia[0] == 0); 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::reverse(Iter(ia), Iter(ia+sa)); 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ia[0] == 0); 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ib[] = {0, 1}; 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sb = sizeof(ib)/sizeof(ib[0]); 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::reverse(Iter(ib), Iter(ib+sb)); 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ib[0] == 1); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ib[1] == 0); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ic[] = {0, 1, 2}; 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sc = sizeof(ic)/sizeof(ic[0]); 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::reverse(Iter(ic), Iter(ic+sc)); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ic[0] == 2); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ic[1] == 1); 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ic[2] == 0); 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int id[] = {0, 1, 2, 3}; 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned sd = sizeof(id)/sizeof(id[0]); 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::reverse(Iter(id), Iter(id+sd)); 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(id[0] == 3); 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(id[1] == 2); 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(id[2] == 1); 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(id[3] == 0); 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<int*> >(); 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<int*> >(); 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<int*>(); 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 61