From owner-freebsd-hackers  Sun Jan 31 02:56:44 1999
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From: Andrew Kenneth Milton <akm@zeus.theinternet.com.au>
Message-Id: <199901311035.UAA28754@zeus.theinternet.com.au>
Subject: Re: some weird C
In-Reply-To: <36B41674.2E66D8EC@newsguy.com> from "Daniel C. Sobral" at "Jan 31, 99 05:38:12 pm"
To: dcs@newsguy.com (Daniel C. Sobral)
Date: Sun, 31 Jan 1999 20:35:55 +1000 (EST)
Cc: hackers@FreeBSD.ORG
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+----[ Daniel C. Sobral ]---------------------------------------------
| Andrew Kenneth Milton wrote:
| > 
| > +----[ Malartre ]---------------------------------------------
| > |
| > | I was expecting 9, not 10.
| > | since 4+5=9?
| > 
| > x is pre-incremented, making it 5 *before* the += takes effect.
| > 
| > This is correct behaviour.
| 
| Explain the 8 then... if x++ takes effect *after* +=, it should have
| been 9, right?

No. the time at which a post increment operation takes place is
undefined, but, before the next *expression*


-- 
Totally Holistic Enterprises Internet|  P:+61 7 3870 0066   |  Andrew
The Internet (Aust) Pty Ltd          |  F:+61 7 3870 4477   |  Milton
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