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Summary-line:  1-Apr                      tower  #["ASC::GUTHERY%slb-test.csnet"@RELAY.CS.NET: Bison Bug?]
Received: by PREP.AI.MIT.EDU; Wed, 1 Apr 87 20:10:49 EST
Date: Wed, 1 Apr 87 20:10:49 EST
From: tower (Leonard H. Tower Jr.)
Message-Id: <8704020110.AA00495@prep.ai.mit.edu>
To: rms
Subject: ["ASC::GUTHERY%slb-test.csnet"@RELAY.CS.NET: Bison Bug?]
Reply-To: tower@prep.ai.mit.edu
Organization: Project GNU, Free Software Foundation,
        1000 Mass. Ave., Cambridge, MA  02138, USA   +1 (617) 876-3296
Home: 36 Porter Street, Somerville, MA  02143, USA   +1 (617) 623-7739
Status: O

*** EOOH ***
Date: Wed, 1 Apr 87 20:10:49 EST
From: tower (Leonard H. Tower Jr.)
To: rms
Subject: ["ASC::GUTHERY%slb-test.csnet"@RELAY.CS.NET: Bison Bug?]
Reply-To: tower@prep.ai.mit.edu
Organization: Project GNU, Free Software Foundation,
        1000 Mass. Ave., Cambridge, MA  02138, USA   +1 (617) 876-3296
Home: 36 Porter Street, Somerville, MA  02143, USA   +1 (617) 623-7739

Date:     Wed, 1 Apr 87 14:12 EDT
From: "guthery%asc%slb-doll.csnet@relay.cs.net" <"ASC::GUTHERY%slb-test.csnet"@RELAY.CS.NET>
To: gnu@PREP.AI.MIT.EDU
Subject:  Bison Bug?
X-Vms-To: SDR::IN%"gnu@prep.ai.mit.edu"

In the build_relations function in the lalr.c file in GNU Bison,
the code

		length--;
		done = 0;
		while(!done) ...

should, I believe, be replaced with

		length--;
		done = 0;
		if(length) while(!done) ...

otherwise things like

		list:	/* empty */ | item | list item;

produce an internal error in map_goto.

						Cheers, Scott




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Received: by frosted-flakes.ai.mit.edu; Wed, 23 Sep 87 12:49:33 EDT
Date: Wed, 23 Sep 87 12:49:33 EDT
From: rms@wheaties.ai.mit.edu (Richard Stallman)
Message-Id: <8709231649.AA18034@frosted-flakes.ai.mit.edu>
To: rms
Subject: Bison

*** EOOH ***
Return-Path: <rms@wheaties.ai.mit.edu>
Date: Wed, 23 Sep 87 12:49:33 EDT
From: rms@wheaties.ai.mit.edu (Richard Stallman)
To: rms
Subject: Bison

Bison should have a feature to specify a prefix for all the names.