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 // <numeric> 11 12 // template <InputIterator InIter, 13 // OutputIterator<auto, const InIter::value_type&> OutIter> 14 // requires HasMinus<InIter::value_type, InIter::value_type> 15 // && Constructible<InIter::value_type, InIter::reference> 16 // && OutputIterator<OutIter, 17 // HasMinus<InIter::value_type, InIter::value_type>::result_type> 18 // && MoveAssignable<InIter::value_type> 19 // OutIter 20 // adjacent_difference(InIter first, InIter last, OutIter result); 21 22 #include <numeric> 23 #include <cassert> 24 25 #include "test_iterators.h" 26 27 template <class InIter, class OutIter> 28 void 29 test() 30 { 31 int ia[] = {15, 10, 6, 3, 1}; 32 int ir[] = {15, -5, -4, -3, -2}; 33 const unsigned s = sizeof(ia) / sizeof(ia[0]); 34 int ib[s] = {0}; 35 OutIter r = std::adjacent_difference(InIter(ia), InIter(ia+s), OutIter(ib)); 36 assert(base(r) == ib + s); 37 for (unsigned i = 0; i < s; ++i) 38 assert(ib[i] == ir[i]); 39 } 40 41 int main() 42 { 43 test<input_iterator<const int*>, output_iterator<int*> >(); 44 test<input_iterator<const int*>, forward_iterator<int*> >(); 45 test<input_iterator<const int*>, bidirectional_iterator<int*> >(); 46 test<input_iterator<const int*>, random_access_iterator<int*> >(); 47 test<input_iterator<const int*>, int*>(); 48 49 test<forward_iterator<const int*>, output_iterator<int*> >(); 50 test<forward_iterator<const int*>, forward_iterator<int*> >(); 51 test<forward_iterator<const int*>, bidirectional_iterator<int*> >(); 52 test<forward_iterator<const int*>, random_access_iterator<int*> >(); 53 test<forward_iterator<const int*>, int*>(); 54 55 test<bidirectional_iterator<const int*>, output_iterator<int*> >(); 56 test<bidirectional_iterator<const int*>, forward_iterator<int*> >(); 57 test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >(); 58 test<bidirectional_iterator<const int*>, random_access_iterator<int*> >(); 59 test<bidirectional_iterator<const int*>, int*>(); 60 61 test<random_access_iterator<const int*>, output_iterator<int*> >(); 62 test<random_access_iterator<const int*>, forward_iterator<int*> >(); 63 test<random_access_iterator<const int*>, bidirectional_iterator<int*> >(); 64 test<random_access_iterator<const int*>, random_access_iterator<int*> >(); 65 test<random_access_iterator<const int*>, int*>(); 66 67 test<const int*, output_iterator<int*> >(); 68 test<const int*, forward_iterator<int*> >(); 69 test<const int*, bidirectional_iterator<int*> >(); 70 test<const int*, random_access_iterator<int*> >(); 71 test<const int*, int*>(); 72 } 73
