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

SDL_srand

Seeds the pseudo-random number generator.

Header File

Defined in <SDL3/SDL_stdinc.h>

Syntax

void SDL_srand(Uint64 seed);

Function Parameters

Uint64

seed

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

Remarks

Reusing the seed number will cause SDL_rand_*() to repeat the same stream of 'random' numbers.

Thread Safety

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

Version

This function is available since SDL 3.1.3.

See Also

• SDL_rand
• SDL_rand_bits
• SDL_randf

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CategoryAPI, CategoryAPIFunction, CategoryStdinc

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