I don't know if this is the right place to ask, but I figured it was worth a try. Basically, I'm getting totally bizarre behaviour from my code, which I have put in a repo at https://gitorious.org/tournament-tree/tournament-tree/source/545460fb9d760b6bfa5bc74deb7b69d79ec70541:

To replicate the error, simply run 'make profile' from the project directory. It should fail (claiming an enforcement error on node.d, line 50). Then, go to tournament.d, and uncomment line 33. Then, try 'make profile' again, and it won't have the same issue. I've been working all day to try and isolate the source of the problem, across multiple machines, and I've had no luck. This is the most isolation I've managed.

I would really appreciate any and all help, as this is something that totally baffles me. I know this is a lot of code, and it's probably quite hideous, but it would help me a lot if someone could at least suggest as to where the source of the problem lies.

I already am aware that the failure is caused by an overflow, but its source is completely unclear, and I never get overflows when that one writeln statement in tournament.d is executed (hence my confusion).

I'm running Manjaro GNU/Linux, and my gdc version is 4.9.1. I have a 64-bit OS.

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