1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <valarray> 10 11 // template<class T> class valarray; 12 13 // valarray(const mask_array<value_type>& ma); 14 15 #include <valarray> 16 #include <cassert> 17 18 int main() 19 { 20 int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; 21 const std::size_t N1 = sizeof(a1)/sizeof(a1[0]); 22 bool b[N1] = {true, false, false, true, true, false, 23 false, true, false, false, false, true}; 24 std::valarray<int> v1(a1, N1); 25 std::valarray<bool> vb(b, N1); 26 std::valarray<int> v2(v1[vb]); 27 assert(v2.size() == 5); 28 assert(v2[ 0] == 0); 29 assert(v2[ 1] == 3); 30 assert(v2[ 2] == 4); 31 assert(v2[ 3] == 7); 32 assert(v2[ 4] == 11); 33 } 34