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From: mfx@cs.tu-berlin.de (Markus Freericks)
Newsgroups: comp.std.c++
Subject: Re: Casting of lvalues - need language lawyer
Date: 24 Nov 1994 12:52:09 GMT
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In-reply-to: jxski@wiretap.spies.com's message of 23 Nov 1994 21:58:13 MET

In article <CzqnL1.K11@wiretap.spies.com> jxski@wiretap.spies.com (Xski) writes:
> Given the following code snippet:
> 
> void foo()
> {
>   unsigned short bs;
>   (int)bs = -1;
> };
> 
> MSC and WatcomC both flag the assignment as an error.  I *KNOW* its
> crappy coding style, but why is it an error in C++? 
[..]

Look at the ARM, Section 5.4, p. 69. It says "The result of a cast to a
reference type is an lvalue; the results of other casts are not".  and
gives the example 

	int i = 1;
	(float) i = 1.2;	// error
	(float&)i = 1.2;	// nonportable

Hope that helps,

	Markus