assimp/test/unit/RandomNumberGeneration.h

/*
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Open Asset Import Library (assimp)
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#ifndef ASSIMP_RANDOM_NUMBER_GENERATION_H
#define ASSIMP_RANDOM_NUMBER_GENERATION_H

#include <random>

namespace Assimp {

/** Helper class to use for generating pseudo-random
 *  real numbers, with a uniform distribution. */
template<typename T>
class RandomUniformRealGenerator {
public:
    RandomUniformRealGenerator() :
            dist_(),
            rd_(),
            re_(rd_())  {
        // empty
    }

    RandomUniformRealGenerator(T min, T max) :
            dist_(min, max),
            rd_(),
            re_(rd_())  {
        // empty
    }

    inline T next() {
        return dist_(re_);
    }

private:
    std::uniform_real_distribution<T> dist_;
    std::random_device rd_;
    std::default_random_engine re_;
};

using RandomUniformFloatGenerator = RandomUniformRealGenerator<float>;

}

#endif // ASSIMP_RANDOM_NUMBER_GENERATION_H