FuzzingUtils.h
41 lines
| 1.1 KiB
| text/x-c
|
CLexer
Alexandre Leroux
|
r1175 | #ifndef SCIQLOP_FUZZINGUTILS_H | ||
| #define SCIQLOP_FUZZINGUTILS_H | ||||
| #include <random> | ||||
| /** | ||||
| * Class that proposes random utility methods | ||||
| */ | ||||
| class RandomGenerator { | ||||
| public: | ||||
| /// @return the unique instance of the random generator | ||||
| static RandomGenerator &instance(); | ||||
| /// Generates a random double between [min, max] | ||||
| double generateDouble(double min, double max); | ||||
| /// Generates a random int between [min, max] | ||||
| int generateInt(int min, int max); | ||||
|
Alexandre Leroux
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r1180 | /// Returns a random element among the elements of a container. If the container is empty, | ||
| /// returns an element built by default | ||||
|
Alexandre Leroux
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r1175 | template <typename T, typename ValueType = typename T::value_type> | ||
|
Alexandre Leroux
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r1180 | ValueType randomChoice(const T &container); | ||
|
Alexandre Leroux
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r1175 | |||
| private: | ||||
| std::mt19937 m_Mt; | ||||
| explicit RandomGenerator(); | ||||
| }; | ||||
|
Alexandre Leroux
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r1180 | template <typename T, typename ValueType> | ||
|
Alexandre Leroux
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r1175 | ValueType RandomGenerator::randomChoice(const T &container) | ||
| { | ||||
|
Alexandre Leroux
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r1180 | if (container.empty()) { | ||
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Alexandre Leroux
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r1175 | return ValueType{}; | ||
| } | ||||
| auto randomIndex = generateInt(0, container.size() - 1); | ||||
| return container.at(randomIndex); | ||||
| } | ||||
| #endif // SCIQLOP_FUZZINGUTILS | ||||