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 Iter1, InputIterator Iter2, MoveConstructible T> 13 // requires HasMultiply<Iter1::reference, Iter2::reference> 14 // && HasPlus<T, HasMultiply<Iter1::reference, Iter2::reference>::result_type> 15 // && HasAssign<T, 16 // HasPlus<T, 17 // HasMultiply<Iter1::reference, 18 // Iter2::reference>::result_type>::result_type> 19 // T 20 // inner_product(Iter1 first1, Iter1 last1, Iter2 first2, T init); 21 22 #include <numeric> 23 #include <cassert> 24 25 #include "test_iterators.h" 26 27 template <class Iter1, class Iter2, class T> 28 void 29 test(Iter1 first1, Iter1 last1, Iter2 first2, T init, T x) 30 { 31 assert(std::inner_product(first1, last1, first2, init) == x); 32 } 33 34 template <class Iter1, class Iter2> 35 void 36 test() 37 { 38 int a[] = {1, 2, 3, 4, 5, 6}; 39 int b[] = {6, 5, 4, 3, 2, 1}; 40 unsigned sa = sizeof(a) / sizeof(a[0]); 41 test(Iter1(a), Iter1(a), Iter2(b), 0, 0); 42 test(Iter1(a), Iter1(a), Iter2(b), 10, 10); 43 test(Iter1(a), Iter1(a+1), Iter2(b), 0, 6); 44 test(Iter1(a), Iter1(a+1), Iter2(b), 10, 16); 45 test(Iter1(a), Iter1(a+2), Iter2(b), 0, 16); 46 test(Iter1(a), Iter1(a+2), Iter2(b), 10, 26); 47 test(Iter1(a), Iter1(a+sa), Iter2(b), 0, 56); 48 test(Iter1(a), Iter1(a+sa), Iter2(b), 10, 66); 49 } 50 51 int main() 52 { 53 test<input_iterator<const int*>, input_iterator<const int*> >(); 54 test<input_iterator<const int*>, forward_iterator<const int*> >(); 55 test<input_iterator<const int*>, bidirectional_iterator<const int*> >(); 56 test<input_iterator<const int*>, random_access_iterator<const int*> >(); 57 test<input_iterator<const int*>, const int*>(); 58 59 test<forward_iterator<const int*>, input_iterator<const int*> >(); 60 test<forward_iterator<const int*>, forward_iterator<const int*> >(); 61 test<forward_iterator<const int*>, bidirectional_iterator<const int*> >(); 62 test<forward_iterator<const int*>, random_access_iterator<const int*> >(); 63 test<forward_iterator<const int*>, const int*>(); 64 65 test<bidirectional_iterator<const int*>, input_iterator<const int*> >(); 66 test<bidirectional_iterator<const int*>, forward_iterator<const int*> >(); 67 test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >(); 68 test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >(); 69 test<bidirectional_iterator<const int*>, const int*>(); 70 71 test<random_access_iterator<const int*>, input_iterator<const int*> >(); 72 test<random_access_iterator<const int*>, forward_iterator<const int*> >(); 73 test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >(); 74 test<random_access_iterator<const int*>, random_access_iterator<const int*> >(); 75 test<random_access_iterator<const int*>, const int*>(); 76 77 test<const int*, input_iterator<const int*> >(); 78 test<const int*, forward_iterator<const int*> >(); 79 test<const int*, bidirectional_iterator<const int*> >(); 80 test<const int*, random_access_iterator<const int*> >(); 81 test<const int*, const int*>(); 82 } 83
