Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_zero - Clear an object's memory to zero.
HEADER FILE
Defined in SDL3/SDL_stdinc.h
SYNOPSIS
#include "SDL3/SDL.h" #define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
DESCRIPTION
This is wrapper over SDL_memset that handles calculating the object size, so there's no chance of copy/paste errors, and the code is cleaner. This requires an object, not a pointer to an object, nor an array.
THREAD SAFETY
It is safe to call this macro from any thread.
AVAILABILITY
This macro is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_zerop(3), •(3), SDL_zeroa(3) Simple Directmedia Layer SDL 3.2.8 SDL_zero(3)