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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.
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template<RandomAccessIterator Iter>
// requires ShuffleIterator<Iter>
// void
// random_shuffle(Iter first, Iter last);
#include <algorithm>
#include <cassert>
int main()
{
int ia[] = {1, 2, 3, 4};
int ia1[] = {1, 4, 3, 2};
int ia2[] = {4, 1, 2, 3};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
std::random_shuffle(ia, ia+sa);
assert(std::equal(ia, ia+sa, ia1));
std::random_shuffle(ia, ia+sa);
assert(std::equal(ia, ia+sa, ia2));
}
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