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// <valarray> 11 12// template<class T> class valarray; 13 14// valarray operator[](slice s) const; 15 16#include <valarray> 17#include <cassert> 18 19int main() 20{ 21 int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; 22 std::valarray<int> v1(a1, sizeof(a1)/sizeof(a1[0])); 23 std::valarray<int> v2 = v1[std::slice(1, 5, 3)]; 24 assert(v2.size() == 5); 25 assert(v2[0] == 1); 26 assert(v2[1] == 4); 27 assert(v2[2] == 7); 28 assert(v2[3] == 10); 29 assert(v2[4] == 13); 30} 31