Path: utzoo!attcan!uunet!jarthur!usc!apple!motcsd!hpda!hpcuhb!hpcllla!hpclisp!hpclwjm!walter
From: walter@hpclwjm.HP.COM (Walter Murray)
Newsgroups: comp.lang.c
Subject: Re: Compilers and programming style (was Re: A question of style)
Message-ID: <660071@hpclwjm.HP.COM>
Date: 12 Jan 90 19:59:45 GMT
References: <564@mwtech.UUCP>
Organization: Hewlett-Packard Calif. Language Lab
Lines: 15

> volatile int *p;
> *p;		/* has side effects and must not be optimized away	*/

> Just curious - what kind of code should be generated for the above
> C fragment?

The Standard says, "What constitutes an access to an object that has
volatile-qualified type is implementation-defined."  Section 3.5.3

In other words, when you buy an ANSI-conforming C, it will be
accompanied by a document that will define the semantics of the
fragment above.

Walter Murray
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