[Bug 221869] bc doesn't always convert ibase to obase correctly

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Aug 29 14:58:36 UTC 2017


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221869

Conrad Meyer <cem at freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|New                         |Closed
                 CC|                            |cem at freebsd.org
         Resolution|---                         |Not A Bug

--- Comment #1 from Conrad Meyer <cem at freebsd.org> ---
Note that as soon as you set ibase=2, numbers are input in base 2.  obase=10
assigns 0b10 (== decimal 2) to obase.  You want obase=1010, or assign obase
before changing ibase.  I believe this is identical in GNU bc.

$ bc  (GNU)
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
ibase=2
obase=1010
1111
15

$ /usr/bin/bc   (BSD)
ibase=2
obase=1010
1111
15

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