Perhaps your build is 64-bit machine, with 8-byte pointers instead of 4-byte pointers.
I can't see any other way that location would push out so far.
I could change the range to 400.
I don't want to make it too high or I could be trolling on invalid memory.
Remember, I don't know the size of the struct.
It is opaque in every way.

I'm not counting on a debug symbol to do this, just the global variables that have to be there for anyone to link against the quick library.

Karl Dahlke