On Mon, Jun 6, 2011 at 8:54 AM, Chris Torek <nos...@torek.net> wrote: > A signalling NaN traps at (more or less -- details vary depending > on FPU architecture) load time.
Load. By this you mean the operation of taking a bit-pattern in RAM and putting it into a register? So, you can calculate 0/0, get a signalling NaN, and then save that into a memory variable, all without it trapping; and then it traps when you next perform an operation on that number? Apologies, this is getting quite off-topic and away from Python. Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list