1 /* 2 * Copyright (C) 2016 Intel Corporation. All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sub license, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject to 10 * the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the 13 * next paragraph) shall be included in all copies or substantial portions 14 * of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 19 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR 20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 #ifndef TEST_UTILS_H 26 #define TEST_UTILS_H 27 28 #include <chrono> 29 #include <cstdlib> 30 31 template <typename T> 32 class RandomValueGenerator 33 { 34 public: RandomValueGenerator(const T & min,const T & max)35 RandomValueGenerator(const T& min, const T& max) 36 : minVal(min) 37 , maxVal(max) 38 { 39 return; 40 } 41 operator()42 const T operator()() const 43 { 44 return static_cast<T>( 45 std::rand() % (maxVal + 1 - minVal) + minVal); 46 } 47 48 private: 49 T minVal; 50 T maxVal; 51 }; 52 53 class Timer 54 { 55 public: 56 typedef typename std::chrono::microseconds us; 57 typedef typename std::chrono::milliseconds ms; 58 typedef typename std::chrono::seconds s; 59 Timer()60 Timer() { reset(); } 61 62 template <typename T = std::chrono::microseconds> elapsed()63 typename T::rep elapsed() const 64 { 65 return std::chrono::duration_cast<T>( 66 std::chrono::steady_clock::now() - start).count(); 67 } 68 reset()69 void reset() 70 { 71 start = std::chrono::steady_clock::now(); 72 } 73 74 private: 75 std::chrono::steady_clock::time_point start; 76 }; 77 78 #endif // TEST_UTILS_H 79