From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <f582bdb4104e3c1aa910418d8cc308b4@terzarima.net>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] const
From: Charles Forsyth <forsyth@terzarima.net>
Date: Fri,  9 Dec 2005 09:54:13 +0000
In-Reply-To: <ee9e417a0512081804ua34babr42d2735d1c81bf0f@mail.gmail.com>
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> the compiler will not registerize x.  This is occasionally
> necessary in the kernel because of waserror().
> For example:
> 
>     x = 0;
>     if(waserror()){
>         print("x=%d\n", x);
>         nexterror();
>     }
>     x = 1;
>     x = f(x);

i think i'ts usually better to (re)write these to avoid confusing the compiler,
for instance by doing a new waserror/nexterror following x=1,
although if x changes value frequently, that's difficult.