Function SDL_randf_r

pub unsafe extern "C" fn SDL_randf_r(state: *mut u64) -> f32
Available on crate feature dep_sdl3 only.
Expand description

Generate a uniform pseudo-random floating point number less than 1.0

If you want reproducible output, be sure to initialize with SDL_srand() first.

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.

§Parameters

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

§Return value

Returns a random value in the range of [0.0, 1.0).

§Thread safety

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

§Availability

This function is available since SDL 3.2.0.

§See also