1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <algorithm> 11 12// template<BidirectionalIterator InIter, BidirectionalIterator OutIter> 13// requires OutputIterator<OutIter, InIter::reference> 14// OutIter 15// copy_backward(InIter first, InIter last, OutIter result); 16 17#include <algorithm> 18#include <cassert> 19 20#include "test_iterators.h" 21 22template <class InIter, class OutIter> 23void 24test() 25{ 26 const unsigned N = 1000; 27 int ia[N]; 28 for (unsigned i = 0; i < N; ++i) 29 ia[i] = i; 30 int ib[N] = {0}; 31 32 OutIter r = std::copy_backward(InIter(ia), InIter(ia+N), OutIter(ib+N)); 33 assert(base(r) == ib); 34 for (unsigned i = 0; i < N; ++i) 35 assert(ia[i] == ib[i]); 36} 37 38int main() 39{ 40 test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >(); 41 test<bidirectional_iterator<const int*>, random_access_iterator<int*> >(); 42 test<bidirectional_iterator<const int*>, int*>(); 43 44 test<random_access_iterator<const int*>, bidirectional_iterator<int*> >(); 45 test<random_access_iterator<const int*>, random_access_iterator<int*> >(); 46 test<random_access_iterator<const int*>, int*>(); 47 48 test<const int*, bidirectional_iterator<int*> >(); 49 test<const int*, random_access_iterator<int*> >(); 50 test<const int*, int*>(); 51} 52