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From: pmk@craycos.com (Peter Klausler)
Newsgroups: comp.lang.c
Subject: Re: Casting pointers
Message-ID: <1990Jul19.155023.6915@craycos.com>
Date: 19 Jul 90 15:50:23 GMT
Organization: Cray Computer Corporation
Lines: 15

volpe@underdog.crd.ge.com (Christopher R Volpe) writes:
> In article <1614@ghost.stsci.edu>, davids@stsci.EDU (David Silberberg) writes:
> |>If the last line above were replaced by
> |>
> |>	 ptr = (char *)ptr + num_chars;
> |>
> |>it would perform as desired.  Does casting work on an lvalue?
> 
> I'm not sure if casting on an l-value is specified anywhere.

Casts NEVER produce lvalues.

Never ever ever ever ever.

Read section 3.3.4 of the standard.