//===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // <valarray> // template<class T> class valarray; // slice_array<value_type> operator[](slice s); #include <valarray> #include <cassert> #include "test_macros.h" int main(int, char**) { { int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; int a2[] = {-1, -2, -3, -4, -5}; std::valarray<int> v1(a1, sizeof(a1)/sizeof(a1[0])); std::valarray<int> v2(a2, sizeof(a2)/sizeof(a2[0])); v1[std::slice(1, 5, 3)] = v2; assert(v1.size() == 16); assert(v1[ 0] == 0); assert(v1[ 1] == -1); assert(v1[ 2] == 2); assert(v1[ 3] == 3); assert(v1[ 4] == -2); assert(v1[ 5] == 5); assert(v1[ 6] == 6); assert(v1[ 7] == -3); assert(v1[ 8] == 8); assert(v1[ 9] == 9); assert(v1[10] == -4); assert(v1[11] == 11); assert(v1[12] == 12); assert(v1[13] == -5); assert(v1[14] == 14); assert(v1[15] == 15); } { int a1[] = {0, 1, 2, 3, 4, 5}; std::valarray<int> v1(a1, sizeof(a1)/sizeof(a1[0])); std::valarray<int> v2((v1 + 0)[std::slice(0, 3, 2)]); assert(v2.size() == 3); assert(v2[0] == 0); assert(v2[1] == 2); assert(v2[2] == 4); } return 0; }