folly::hash::twang_32from64

Thomas Wang downscaling hash function.

Synopsis

Declared in <folly/hash/Hash.h>

constexpr
uint32_t
twang_32from64(uint64_t key) noexcept;

Description

methodset twang

Return Value

The resulting 32-bit hash

Parameters

NameDescription
keyThe 64-bit value to downscale