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 22 template <class InIter, class OutIter> 23 void 24 test() 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 38 int 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
