| //===----------------------------------------------------------------------===// |
| // |
| // 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 indirect_array; |
| |
| // T __get(size_t i); |
| |
| #include <valarray> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main(int, char**) { |
| unsigned input[] = {0, 1, 2, 3, 4}; |
| const unsigned N = sizeof(input) / sizeof(input[0]); |
| |
| std::valarray<unsigned> array(input, N); |
| |
| { |
| std::indirect_array<unsigned> result = array[std::valarray<std::size_t>(std::size_t(0), std::size_t(N))]; |
| for (unsigned i = 0; i < N; ++i) |
| assert(result.__get(i) == 0); |
| } |
| |
| { |
| std::valarray<std::size_t> indirect(std::size_t(0), std::size_t(3)); |
| indirect[0] = 4; |
| indirect[1] = 1; |
| indirect[2] = 3; |
| std::indirect_array<unsigned> result = array[indirect]; |
| assert(result.__get(0) == 4); |
| assert(result.__get(1) == 1); |
| assert(result.__get(2) == 3); |
| } |
| |
| return 0; |
| } |