| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <array> |
| #include <algorithm> |
| |
| namespace org::apache::nifi::minifi::utils { |
| |
| /** |
| * Concatenates the arrays in the argument list. |
| * Similar to std::tuple_cat, but for arrays instead of tuples. |
| * Copied from @Constructor's answer on StackOverflow: https://stackoverflow.com/a/42774523/14707518 |
| */ |
| template <typename Type, std::size_t... sizes> |
| constexpr auto array_cat(const std::array<Type, sizes>&... arrays) { |
| std::array<Type, (sizes + ...)> result; |
| std::size_t index{}; |
| |
| ((std::copy_n(arrays.begin(), sizes, result.begin() + index), index += sizes), ...); |
| |
| return result; |
| } |
| |
| } // namespace org::apache::nifi::minifi::utils |
