| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <numeric> |
| |
| // template <InputIterator Iter1, InputIterator Iter2, MoveConstructible T, |
| // class BinaryOperation1, |
| // Callable<auto, Iter1::reference, Iter2::reference> BinaryOperation2> |
| // requires Callable<BinaryOperation1, const T&, BinaryOperation2::result_type> |
| // && HasAssign<T, BinaryOperation1::result_type> |
| // && CopyConstructible<BinaryOperation1> |
| // && CopyConstructible<BinaryOperation2> |
| // T |
| // inner_product(Iter1 first1, Iter1 last1, Iter2 first2, |
| // T init, BinaryOperation1 binary_op1, BinaryOperation2 binary_op2); |
| |
| #include <numeric> |
| #include <functional> |
| #include <cassert> |
| |
| #include "test_iterators.h" |
| |
| template <class Iter1, class Iter2, class T> |
| void |
| test(Iter1 first1, Iter1 last1, Iter2 first2, T init, T x) |
| { |
| assert(std::inner_product(first1, last1, first2, init, |
| std::multiplies<int>(), std::plus<int>()) == x); |
| } |
| |
| template <class Iter1, class Iter2> |
| void |
| test() |
| { |
| int a[] = {1, 2, 3, 4, 5, 6}; |
| int b[] = {6, 5, 4, 3, 2, 1}; |
| unsigned sa = sizeof(a) / sizeof(a[0]); |
| test(Iter1(a), Iter1(a), Iter2(b), 1, 1); |
| test(Iter1(a), Iter1(a), Iter2(b), 10, 10); |
| test(Iter1(a), Iter1(a+1), Iter2(b), 1, 7); |
| test(Iter1(a), Iter1(a+1), Iter2(b), 10, 70); |
| test(Iter1(a), Iter1(a+2), Iter2(b), 1, 49); |
| test(Iter1(a), Iter1(a+2), Iter2(b), 10, 490); |
| test(Iter1(a), Iter1(a+sa), Iter2(b), 1, 117649); |
| test(Iter1(a), Iter1(a+sa), Iter2(b), 10, 1176490); |
| } |
| |
| int main() |
| { |
| test<input_iterator<const int*>, input_iterator<const int*> >(); |
| test<input_iterator<const int*>, forward_iterator<const int*> >(); |
| test<input_iterator<const int*>, bidirectional_iterator<const int*> >(); |
| test<input_iterator<const int*>, random_access_iterator<const int*> >(); |
| test<input_iterator<const int*>, const int*>(); |
| |
| test<forward_iterator<const int*>, input_iterator<const int*> >(); |
| test<forward_iterator<const int*>, forward_iterator<const int*> >(); |
| test<forward_iterator<const int*>, bidirectional_iterator<const int*> >(); |
| test<forward_iterator<const int*>, random_access_iterator<const int*> >(); |
| test<forward_iterator<const int*>, const int*>(); |
| |
| test<bidirectional_iterator<const int*>, input_iterator<const int*> >(); |
| test<bidirectional_iterator<const int*>, forward_iterator<const int*> >(); |
| test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >(); |
| test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >(); |
| test<bidirectional_iterator<const int*>, const int*>(); |
| |
| test<random_access_iterator<const int*>, input_iterator<const int*> >(); |
| test<random_access_iterator<const int*>, forward_iterator<const int*> >(); |
| test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >(); |
| test<random_access_iterator<const int*>, random_access_iterator<const int*> >(); |
| test<random_access_iterator<const int*>, const int*>(); |
| |
| test<const int*, input_iterator<const int*> >(); |
| test<const int*, forward_iterator<const int*> >(); |
| test<const int*, bidirectional_iterator<const int*> >(); |
| test<const int*, random_access_iterator<const int*> >(); |
| test<const int*, const int*>(); |
| } |