SDL_memset - Man Page

#include <SDL3/SDL_stdinc.h>

void * SDL_memset(void *dst, int c, size_t len);

This function will set len bytes, pointed to by dst, to the value specified in c.

Despite c being an int instead of a char, this only operates on bytes; c must be a value between 0 and 255, inclusive.

dst

the destination memory region. Must not be NULL.

c

the byte value to set.

len

the length, in bytes, to set in dst.

Returns dst.

It is safe to call this function from any thread.

This function is available since SDL 3.2.0.