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Compare Random Number Engines

Compare Random Number Engines

Learn to compare random number engines.

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The random library provides a selection of random number generators, each with different strategies and properties. In this recipe, we examine a function to compare the different options by creating a histogram of their output.

How to do it

In this recipe, we compare the different random number generators provided by the C++ random library:

  • We start with some constants to provide uniform parameters for the random number generators:

constexpr size_t n_samples{ 1000 };
constexpr size_t n_partitions{ 10 };
constexpr size_t n_max{ 50 };

n_samples is the number of samples to examine, n_partitions is the number of partitions in which to display the samples, and n_max is the ...