SDL_MemoryBarrierAcquire - Insert a memory acquire barrier (macro version).

       This macro is available since SDL 3.2.0.

       Please see SDL_MemoryBarrierRelease
        for the details on what memory barriers are and when to use them.

       This  is the macro version of this functionality; if possible, SDL will use compiler intrinsics or inline
       assembly, but some platforms might need to call the function version of this,

       SDL_MemoryBarrierAcquireFunction , to do the heavy lifting. Apps that can use the macro should  favor  it
       over the function.

       Defined in SDL3/SDL_atomic.h

       SDL_MemoryBarrierAcquire - Insert a memory acquire barrier (macro version).

•(3), SDL_MemoryBarrierRelease(3), •(3), SDL_MemoryBarrierAcquireFunction(3)

Simple Directmedia Layer                           SDL 3.2.10                        SDL_MemoryBarrierAcquire(3)

#include"SDL3/SDL.h"#defineSDL_MemoryBarrierAcquire()SDL_MemoryBarrierAcquireFunction()

       Obviously  this  macro is safe to use from any thread at any time, but if you find yourself needing this,
       you are probably dealing with some very sensitive code; be careful!