mc::rng::detail Namespace Reference

Functions
std::uint64_t	splitmix64_mix (std::uint64_t x)
std::uint64_t	combine_seeds (std::uint64_t base_seed, std::uint64_t stream_id, std::uint64_t thread_id)
std::mt19937	create_mt19937 (std::uint64_t seed)
	Create mt19937 from a 64-bit seed.

Variables
std::atomic< std::uint32_t >	g_global_seed {12345u}
std::atomic< bool >	g_seed_initialized {false}

Function Documentation

combine_seeds()

std::uint64_t mc::rng::detail::combine_seeds ( std::uint64_t  base_seed, std::uint64_t  stream_id, std::uint64_t  thread_id  )

inline

Definition at line 36 of file rng_factory.cpp.

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create_mt19937()

std::mt19937 mc::rng::detail::create_mt19937 ( std::uint64_t  seed )

inline

Create mt19937 from a 64-bit seed.

Expands the 64-bit mixed seed into 8x 32-bit words deterministically. This feeds std::seed_seq with more material than just {lo, hi}.

Definition at line 55 of file rng_factory.cpp.

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splitmix64_mix()

std::uint64_t mc::rng::detail::splitmix64_mix ( std::uint64_t  x )

inline

Definition at line 29 of file rng_factory.cpp.

Variable Documentation

g_global_seed

std::atomic<std::uint32_t> mc::rng::detail::g_global_seed {12345u}

Definition at line 9 of file rng_global.cpp.

g_seed_initialized

std::atomic<bool> mc::rng::detail::g_seed_initialized {false}

Definition at line 12 of file rng_global.cpp.