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Re: How to stay in fixnum range?
From: |
Ludovic Courtès |
Subject: |
Re: How to stay in fixnum range? |
Date: |
Wed, 21 Jan 2009 17:28:03 +0100 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.3 (gnu/linux) |
Hello,
Panicz Maciej Godek <address@hidden> writes:
> If all the operations were performed in the modulo
> arithmetics (as they are in low level languages), the
> problem would solve automatically.
Overflow when doing arithmetic with signed numbers is undefined in C.
See, for instance, GCC's documentation for `-fstrict-overflow'
(info "(gcc) Optimize Options").
Thanks,
Ludo'.