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From: "Brett Serkez" <techie AT serkez DOT net>
To: cygwin AT cygwin DOT com, "Vadim Oganesyan" <vadim DOT oganesyan AT yale DOT edu>
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References: <Pine DOT LNX DOT 4 DOT 63 DOT 0601291059100 DOT 14268 AT ajax DOT its DOT yale DOT edu>    <Pine DOT GSO DOT 4 DOT 63 DOT 0601291251440 DOT 7389 AT access1 DOT cims DOT nyu DOT edu>
Subject: Re: bizarre g++ behavior after reinstalling cygwin
In-Reply-To: <Pine.GSO.4.63.0601291251440.7389@access1.cims.nyu.edu>
Date: Sun, 29 Jan 2006 13:57:22 -0500
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<snip>
> "i=i++" is either a no-op or nonsense, depending on the
> interpretation. You should either use "i=i+1" or "i++" (those should
> be equivalent in modern compilers).

The strick interpretation of i=i++ starts by evaluating the right side
"i++" to compute a r-value (right value).  Since the ++ is after the i,
it is a post-operation, vs. if it were before the i, in which case it
would be a pre-operation.   So first the value of i would be saved, then
i incremented, then the saved value would be assigned to the l-value
(left value) which in this case is i, setting i back to its original
value.  You could use "i=++i" which would increment i, then save the r-
value and assign to the l-value, but then again, i++ would be much
simplier, no?

Brett
----------------------------------------------------------------
Brett C. Serkez, Techie


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