Get the current assertion handler.
void **puserdata);SDL_AssertionHandler SDL_GetAssertionHandler(
pointer which is filled with the "userdata" pointer that was passed to SDL_SetAssertionHandler()
Returns the SDL_AssertionHandler that is called when an assert triggers.
This returns the function pointer that is called when an assertion is triggered. This is either the value last passed to SDL_SetAssertionHandler(), or if no application-specified function is set, is equivalent to calling SDL_GetDefaultAssertionHandler().
puserdata is a pointer to a void*, which will store the "userdata" pointer that was passed to SDL_SetAssertionHandler(). This value will always be NULL for the default handler. If you don't care about this data, it is safe to pass a NULL pointer to this function to ignore it.
This function is available since SDL 2.0.2.