1 // Copyright (c) 2019 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SOURCE_FUZZ_PSEUDO_RANDOM_GENERATOR_H_ 16 #define SOURCE_FUZZ_PSEUDO_RANDOM_GENERATOR_H_ 17 18 #include <random> 19 20 #include "source/fuzz/random_generator.h" 21 22 namespace spvtools { 23 namespace fuzz { 24 25 // Generates random data from a pseudo-random number generator. 26 class PseudoRandomGenerator : public RandomGenerator { 27 public: 28 explicit PseudoRandomGenerator(uint32_t seed); 29 30 ~PseudoRandomGenerator() override; 31 32 uint32_t RandomUint32(uint32_t bound) override; 33 34 uint64_t RandomUint64(uint64_t bound) override; 35 36 uint32_t RandomPercentage() override; 37 38 bool RandomBool() override; 39 40 double RandomDouble() override; 41 42 private: 43 std::mt19937 mt_; 44 }; 45 46 } // namespace fuzz 47 } // namespace spvtools 48 49 #endif // SOURCE_FUZZ_PSEUDO_RANDOM_GENERATOR_H_ 50