| // Copyright 2013 Google Inc. All Rights Reserved. |
| // |
| // 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. |
| // |
| // Helper for rounding |
| |
| #ifndef WOFF2_ROUND_H_ |
| #define WOFF2_ROUND_H_ |
| |
| namespace woff2 { |
| |
| // Round a value up to the nearest multiple of 4. Don't round the value in the |
| // case that rounding up overflows. |
| template<typename T> T Round4(T value) { |
| if (std::numeric_limits<T>::max() - value < 3) { |
| return value; |
| } |
| return (value + 3) & ~3; |
| } |
| |
| } // namespace woff2 |
| |
| #endif // WOFF2_ROUND_H_ |
