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// void 15// random_shuffle(Iter first, Iter last); 16 17#include <algorithm> 18#include <cassert> 19 20int main() 21{ 22 int ia[] = {1, 2, 3, 4}; 23 int ia1[] = {1, 4, 3, 2}; 24 int ia2[] = {4, 1, 2, 3}; 25 const unsigned sa = sizeof(ia)/sizeof(ia[0]); 26 std::random_shuffle(ia, ia+sa); 27 assert(std::equal(ia, ia+sa, ia1)); 28 std::random_shuffle(ia, ia+sa); 29 assert(std::equal(ia, ia+sa, ia2)); 30} 31