| Junxiao Shi | b573484 | 2024-01-09 21:14:53 +0000 | [diff] [blame] | 1 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| 2 | /* |
| 3 | * Copyright (c) 2014-2024, The University of Memphis, |
| 4 | * Regents of the University of California, |
| 5 | * Arizona Board of Regents. |
| 6 | * |
| 7 | * This file is part of NLSR (Named-data Link State Routing). |
| 8 | * See AUTHORS.md for complete list of NLSR authors and contributors. |
| 9 | * |
| 10 | * NLSR is free software: you can redistribute it and/or modify it under the terms |
| 11 | * of the GNU General Public License as published by the Free Software Foundation, |
| 12 | * either version 3 of the License, or (at your option) any later version. |
| 13 | * |
| 14 | * NLSR is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
| 15 | * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| 16 | * PURPOSE. See the GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along with |
| 19 | * NLSR, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>. |
| 20 | */ |
| 21 | |
| 22 | #ifndef NLSR_NUMERIC_HPP |
| 23 | #define NLSR_NUMERIC_HPP |
| 24 | |
| 25 | #include "common.hpp" |
| 26 | |
| 27 | namespace nlsr::util { |
| 28 | |
| 29 | /** |
| 30 | * @brief Determine whether the difference between two numbers are within epsilon. |
| 31 | * @param lhs first number. |
| 32 | * @param rhs second number. |
| 33 | * @returns true if their difference is within epsilon. |
| 34 | */ |
| 35 | inline bool |
| 36 | diffInEpsilon(double lhs, double rhs) |
| 37 | { |
| 38 | return std::abs(lhs - rhs) < std::numeric_limits<double>::epsilon(); |
| 39 | } |
| 40 | |
| 41 | } // namespace nlsr::util |
| 42 | |
| 43 | #endif // NLSR_NUMERIC_HPP |