From owner-freebsd-hackers  Fri Aug 10  7:46:22 2001
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From: Les Biffle <les@safety.net>
Message-Id: <200108101446.HAA99867@safety.net>
Subject: Re: the =+ operator
In-Reply-To: <3B73F0BC.548D40B3@home.com> from Rob at "Aug 10, 2001 07:33:32 am"
To: europax@home.com (Rob)
Date: Fri, 10 Aug 2001 07:46:16 -0700 (MST)
Cc: hackers@FreeBSD.ORG (hackers@FreeBSD.ORG)
Reply-To: les@safety.net
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> My first post on hackers, so please don't flame me too bad :)  I think
> that only an old hacker can give me the answer :)
> 
> I've searched far and wide on search engines to find out what the =+
> operator does, to no avail.  I'm porting some old code and found it.

I ran into this a couple of times, and it was always a typo by the
programmer.  Whether they meant to use "+=" or not wasn't always
clear.  In C, you should imagine reading the code with all of the
non-quoted white space removed to see how the compiler will treat
something, so "a =+ 1;"  is the same as "a=+1;" or "a = +1;"  There
has never been an operator =+, even checking back to the BCPL days.

So, read the code carefully to see if you can figure out if they
meant +=

Regards,

-Les

-- 
Les Biffle            Community Service...  Just Say NO!
(480) 585-4099    les@safety.net  http://www.les.safety.net/
Network Safety Corp., 5831 E. Dynamite Blvd.,  Cave Creek, AZ 85331

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