forked from OSchip/llvm-project
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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*>();
|
|
}
|