Summary
This episode demonstrates how to implement a compile-time random number generator using constexpr in C++. Jason presents a pseudorandom number generator (PCG) that can generate sequences of deterministic but seemingly random numbers entirely at compile time. He explains how to create a constexpr-enabled version of the generator and then extends it to produce different random sequences on each compilation by seeding it with the __TIME__ macro. This technique allows developers to bake random values into their programs at compile time, potentially useful for applications like procedurally generated game content, where having the randomness pre-calculated can improve runtime performance.
Related C++ Standard Sections
This episode covers topics found in these sections of the C++ standard:
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[rand.device]51% match -
[rand.adapt.disc]50% match -
[rand.adapt.shuf]50% match -
[rand.eng.lcong]48% match