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Bernhard (4508)
Bernhard.Schmalhofer@gmx.de
https://www.xing ... hard_Schmalhofer
A freelance software engineer with experience in webapplications, databases and bioinformatics.
A contributor to Parrot and the person behind Pipp.
A physicist who worked with third sound in Helium-III and CCD X-ray detectors.
barney on irc.perl.org
github: http://github.com/bschmalhofer [github.com]
LinkedIn:http://www.linkedin.com/in/bernhardschmalhofer [linkedin.com]
XING: https://www.xing.com/profile/Bernhard_Schmalhofer [xing.com]
No unary '+' in 'POSIX bc'
I'm still trying to learn about computer languages, by targeting 'POSIX bc' to Parrot. Currently I'm checking whether I got the precedences of '+', '-', '*', '/' and '%' right. The harder things are still to come: variables and subroutines.
There is a funny thing I noticed about POSIX bc. POSIX bc has no unary '+', thus '+1' on a line by itself is a syntax error.
bernhard@ubuntu:~$ bc -s
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'.
1
1
-1
-1
+1
(standard_in) 3: syntax error
0
0
quit
bernhard@ubuntu:~$
an endless discussion thread about what features to include.
-- Jarkko Hietaniemi
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