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From: | Bruno Haible |
Subject: | Re: checking against signed integer overflow |
Date: | Sat, 05 Dec 2020 19:07:20 +0100 |
User-agent: | KMail/5.1.3 (Linux/4.4.0-193-generic; KDE/5.18.0; x86_64; ; ) |
Jeffrey Walton wrote: > You might also checkout an overflow library. For the C language, > safe_iop is available. Gnulib's INT_*_WRAPV macros are similar. [1] > -ftrapv is for defective programs. A program using -ftrapv is still > defective and should be fixed. You mean, '-fwrapv' is for defective programs? Bruno [1] https://www.gnu.org/software/gnulib/manual/html_node/Wraparound-Arithmetic.html
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