Man page - sdl_srand(3)

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SDL_srand - Seeds the pseudo-random number generator.

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"

void SDL_srand(Uint64 seed);

Reusing the seed number will cause SDL_rand () to repeat the same stream of ’random’ numbers.

seed

the value to use as a random number seed, or 0 to use SDL_GetPerformanceCounter ().

This should be called on the same thread that calls SDL_rand ()

This function is available since SDL 3.2.0.