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| From | Ilkka Virta <itvirta@iki.fi> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: Arithmetic evaluation of negative numbers with base prefix |
| Date | Fri, 14 Jun 2019 21:30:15 +0300 |
| Lines | 23 |
| Approved | bug-bash@gnu.org |
| Message-ID | <mailman.93.1560537058.10840.bug-bash@gnu.org> (permalink) |
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| To | Jeremy Townshend <jeremy.townshend@gmail.com> |
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On 14.6. 17:19, Jeremy Townshend wrote: > echo $((10#-1)) # -1 as expected Earlier discussion about the same on bug-bash: https://lists.gnu.org/archive/html/bug-bash/2018-07/msg00015.html Bash doesn't support the minus (or plus) sign following the 10#. I think the expression above seems to work in this case because 10# is treated as a constant number by itself (with a value of 0), and then the 1 is subtracted. try also e.g.: $ echo $((10#)) 0 > echo $((0-10#-1)) # -1 UNEXPECTED. Would expect 1. So this is 0-0-1 = -1 -- Ilkka Virta / itvirta@iki.fi
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Re: Arithmetic evaluation of negative numbers with base prefix Ilkka Virta <itvirta@iki.fi> - 2019-06-14 21:30 +0300
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