bug in arithmetic expansion

From	Joern Knoll <J.Knoll@gsi.de>
Newsgroups	gnu.bash.bug
Subject	bug in arithmetic expansion
Date	2019-11-09 11:52 +0100
Message-ID	<mailman.1100.1573308932.13325.bug-bash@gnu.org> (permalink)
References	<5415801f-6c6e-9664-7747-9adc02a592f8@gsi.de>

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Hallo,

in playing around with digital keys (integers) which have a simple 
arithmetic check property, I encountered problemsusing bash's arithmetic 
expansion, when ever the used digital substrings have leading zeros. The 
problem shows up already for the simplest operations, namely converting 
a string argument to its numerical value, as shown below.

With thanks for your attention and best regards, Jörn Knoll

[tplx99]:/the/knoll > echo $((0123))
83
[tplx99]:/the/knoll > echo $((123))
123
[tplx99]:/the/knoll > echo $((01234))
668
[tplx99]:/the/knoll > echo $((1234))
1234


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bug in arithmetic expansion Joern Knoll <J.Knoll@gsi.de> - 2019-11-09 11:52 +0100

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