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// <algorithm>
11
12// template<RandomAccessIterator Iter>
13//   requires ShuffleIterator<Iter>
14//         && LessThanComparable<Iter::value_type>
15//   void
16//   push_heap(Iter first, Iter last);
17
18#include <algorithm>
19#include <cassert>
20
21void test(unsigned N)
22{
23    int* ia = new int [N];
24    for (int i = 0; i < N; ++i)
25        ia[i] = i;
26    std::random_shuffle(ia, ia+N);
27    for (int i = 0; i <= N; ++i)
28    {
29        std::push_heap(ia, ia+i);
30        assert(std::is_heap(ia, ia+i));
31    }
32    delete [] ia;
33}
34
35int main()
36{
37    test(1000);
38}
39