Rectangles are considered equal if both are not NULL and each of their x,
y, width and height match.
Note that this is a forced-inline function in a header, and not a public
API function available in the SDL library (which is to say, the code is
embedded in the calling program and the linker and dynamic loader will not
be able to find this function inside SDL itself).
Determine whether two rectangles are equal.
Rectangles are considered equal if both are not NULL and each of their x, y, width and height match.
Note that this is a forced-inline function in a header, and not a public API function available in the SDL library (which is to say, the code is embedded in the calling program and the linker and dynamic loader will not be able to find this function inside SDL itself).