C Implementation of PCG64

• Robert Kern <robert.kern@gmail.com>

This is a pure C implementation of the PCG64 member of the PCG family of pseudorandom number generators. 128-bit arithmetic is emulated when a suitable uint128_t type is not available. Settable streams and jumpahead are implemented.

This is not necessarily production-quality code. It's mostly presented here in the interest of sharing for others to take on.

License

Available under either the Apache v2 license or MIT license.

Todo

• MSVC portability #ifdefery
• Real test vectors verified against upstream