To: "Dr. Nikolaus Klepp" <off...@klepp.biz>
Cc: 559...@bugs.debian.org
Subject: Re: Bug#559435: bc: wrong operator precedence
X-Draft-From: ("nnml+private:bc" 826)
References: <20091204113255.18295.87026.report...@localhost.localdomain>
From: John Hasler <jhas...@newsguy.com>
Organization: Dancing Horse Hill
--text follows this line--
>From the bc man page:
The expression precedence is as follows: (lowest to highest)
|| operator, left associative
&& operator, left associative
! operator, nonassociative
Relational operators, left associative
Assignment operator, right associative
+ and - operators, left associative
*, / and % operators, left associative
^ operator, right associative
unary - operator, nonassociative
++ and -- operators, nonassociative
Note that "unary -" has _higher_ precedence than "^". Thus "-6^2" is
equivalent to "(-6)^2". "-6" represents the negative number "minus
six", not the expression "0-6".
--
John Hasler
jhas...@newsguy.com
Elmwood, WI USA
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