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//===----------------------------------------------------------------------===//
//
// 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 Iter, MoveConstructible T>
// requires HasPlus<T, Iter::reference>
// && HasAssign<T, HasPlus<T, Iter::reference>::result_type>
// T
// accumulate(Iter first, Iter last, T init);
#include <numeric>
#include <cassert>
#include "test_iterators.h"
template <class Iter, class T>
void
test(Iter first, Iter last, T init, T x)
{
assert(std::accumulate(first, last, init) == x);
}
template <class Iter>
void
test()
{
int ia[] = {1, 2, 3, 4, 5, 6};
unsigned sa = sizeof(ia) / sizeof(ia[0]);
test(Iter(ia), Iter(ia), 0, 0);
test(Iter(ia), Iter(ia), 10, 10);
test(Iter(ia), Iter(ia+1), 0, 1);
test(Iter(ia), Iter(ia+1), 10, 11);
test(Iter(ia), Iter(ia+2), 0, 3);
test(Iter(ia), Iter(ia+2), 10, 13);
test(Iter(ia), Iter(ia+sa), 0, 21);
test(Iter(ia), Iter(ia+sa), 10, 31);
}
int main()
{
test<input_iterator<const int*> >();
test<forward_iterator<const int*> >();
test<bidirectional_iterator<const int*> >();
test<random_access_iterator<const int*> >();
test<const int*>();
}
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