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srivathsanmurali/random.hpp

Created April 12, 2017 08:48
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A simple random number generator that is thread safe using C++11 random engines. Random number generator engines are not thread safe. Using thread_local, initializes an engine per thread.
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random.hpp
#include <random>
float randFloat(float low, float high) {
thread_local static std::random_device rd;
thread_local static std::mt19937 rng(rd());
thread_local std::uniform_real_distribution<float> urd;
return urd(rng, decltype(urd)::param_type{low,high});
}
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are you sure? calls to std::random_device utilize some global state which might not be thread safe.
https://stackoverflow.com/q/42157381/8088550

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