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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <numeric>
// template <InputIterator Iter1, InputIterator Iter2, MoveConstructible T>
// requires HasMultiply<Iter1::reference, Iter2::reference>
// && HasPlus<T, HasMultiply<Iter1::reference, Iter2::reference>::result_type>
// && HasAssign<T,
// HasPlus<T,
// HasMultiply<Iter1::reference,
// Iter2::reference>::result_type>::result_type>
// T
// inner_product(Iter1 first1, Iter1 last1, Iter2 first2, T init);
#include <numeric>
#include <cassert>
#include "test_macros.h"
#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) == 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), 0, 0);
test(Iter1(a), Iter1(a), Iter2(b), 10, 10);
test(Iter1(a), Iter1(a+1), Iter2(b), 0, 6);
test(Iter1(a), Iter1(a+1), Iter2(b), 10, 16);
test(Iter1(a), Iter1(a+2), Iter2(b), 0, 16);
test(Iter1(a), Iter1(a+2), Iter2(b), 10, 26);
test(Iter1(a), Iter1(a+sa), Iter2(b), 0, 56);
test(Iter1(a), Iter1(a+sa), Iter2(b), 10, 66);
}
int main(int, char**)
{
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*>();
return 0;
}
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