From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
Subject: Re: [9fans] software quality and popularity
From: David Gordon Hogan <dhog@plan9.bell-labs.com>
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Date: Wed, 23 May 2001 14:45:58 -0400
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"Douglas A. Gwyn" <DAGwyn@null.net> writes:
>  Oh, great, more usurping of data values for in-band
>  signalling of exceptional conditions.

| /* alloca.c -- allocate automatically reclaimed memory
|    (Mostly) portable public-domain implementation -- D A Gwyn

[snip]

|    As a special case, alloca(0) reclaims storage without
|    allocating any.  It is a good idea to use alloca(0) in
|    your main control loop, etc. to force garbage collection.  */

Gotcha!