GNU bug report logs - #43764
Calc shift right broken

Previous Next

Full log

View this message in rfc822 format

From: Mattias Engdegård <mattiase <at> acm.org>
To: Vincent Belaïche <vincent.b.1 <at> hotmail.fr>
Cc: 43764 <at> debbugs.gnu.org
Subject: bug#43764: Calc shift right broken
Date: Fri, 2 Oct 2020 22:49:07 +0200

This actually works as designed; see the Calc manual. In short, Calc maintains a 'word size' and clips all results of binary operations to that size. Apparently, Calc clips the argument for good measure before even performing the right-shift. The default word size is 32 bits; you can change it using "b w".

Whether this is the best design can be debated, of course. Tell us if you are happy with this explanation, or if you think it should work in a different way. (Can't promise any major changes, though.)

A very modest reform would be to set the default word size to 64 bits, to keep up with the times.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.