SDL_murmur3_323

Calculate a 32-bit murmurhash3 value for a block of data.

Usage

#include "SDL3/SDL.h"

Uint32 SDL_murmur3_32(const void *data, size_t len, Uint32 seed);

Header file

Defined in SDL3/SDL_stdinc.h

Overview

https://en.wikipedia.org/wiki/MurmurHash

A seed may be specified, which changes the final results consistently, but this does not work like SDL_crc16
and SDL_crc32 : you can't feed a previous result from this function back into itself as the next seed value to calculate a hash in chunks; it won't produce the same hash as it would if the same data was provided in a single call.

If you aren't sure what to provide for a seed, zero is fine. Murmur3 is not cryptographically secure, so it shouldn't be used for hashing top-secret data.

Function parameters

`data`	the data to be hashed.
`len`	the size of data, in bytes.
`seed`	a value that alters the final hash value.

Return value

( Uint32 ) Returns a Murmur3 32-bit hash value.

Thread safety

It is safe to call this function from any thread.