(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_rand_bits_r

Generate 32 pseudo-random bits.

Header File

Syntax

Uint32 SDL_rand_bits_r(Uint64 *state);

Function Parameters

Uint64 *

state

a pointer to the current random number state, this may not be NULL.

Return Value

(Uint32) Returns a random value in the range of [0-SDL_MAX_UINT32].

Remarks

You likely want to use SDL_rand_r() to get a psuedo-random number instead.

There are no guarantees as to the quality of the random sequence produced, and this should not be used for security (cryptography, passwords) or where money is on the line (loot-boxes, casinos). There are many random number libraries available with different characteristics and you should pick one of those to meet any serious needs.

Thread Safety

This function is thread-safe, as long as the state pointer isn't shared between threads.

Version

This function is available since SDL 3.1.3.