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 19 int 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
