| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed 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. |
| */ |
| |
| #ifndef NETUTILS_MATH_H |
| #define NETUTILS_MATH_H |
| |
| #include <algorithm> |
| #include <cstdint> |
| |
| namespace android { |
| namespace netdutils { |
| |
| template <class T> |
| inline constexpr const T mask(const int shift) { |
| return (1 << shift) - 1; |
| } |
| |
| // Align x up to the nearest integer multiple of 2^shift |
| template <class T> |
| inline constexpr const T align(const T& x, const int shift) { |
| return (x + mask<T>(shift)) & ~mask<T>(shift); |
| } |
| |
| } // namespace netdutils |
| } // namespace android |
| |
| #endif /* NETUTILS_MATH_H */ |
