SPIRV-Tools/source/fuzz/pseudo_random_generator.h
Alastair Donaldson fe9f870130
Add library for spirv-fuzz (#2618)
Adds a library for spirv-fuzz, consisting of a Fuzzer class that will
transform a module with respect to (a) facts about the module provided
via a FactManager class, and (b) a source of random numbers and
parameters to control the transformation process provided via a
FuzzerContext class.  Transformations will be applied via classes that
implement a FuzzerPass interface, and both facts and transformations
will be represented via protobuf messages.  Currently there are no
concrete facts, transformations nor fuzzer passes; these will follow.
2019-05-27 14:34:55 +01:00

48 lines
1.3 KiB
C++

// Copyright (c) 2019 Google LLC
//
// 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 SOURCE_FUZZ_PSEUDO_RANDOM_GENERATOR_H_
#define SOURCE_FUZZ_PSEUDO_RANDOM_GENERATOR_H_
#include <random>
#include "source/fuzz/random_generator.h"
namespace spvtools {
namespace fuzz {
// Generates random data from a pseudo-random number generator.
class PseudoRandomGenerator : public RandomGenerator {
public:
explicit PseudoRandomGenerator(uint32_t seed);
~PseudoRandomGenerator() override;
uint32_t RandomUint32(uint32_t bound) override;
uint32_t RandomPercentage() override;
bool RandomBool() override;
double RandomDouble() override;
private:
std::mt19937 mt_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_PSEUDO_RANDOM_GENERATOR_H_