From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: zsh-workers-request@euclid.skiles.gatech.edu
Received: from euclid.skiles.gatech.edu (list@euclid.skiles.gatech.edu [130.207.146.50]) by coral.primenet.com.au (8.7.6/8.7.3) with ESMTP id MAA21244 for <mason@primenet.com.au>; Sun, 24 Nov 1996 12:32:14 +1100 (EST)
Received: (from list@localhost) by euclid.skiles.gatech.edu (8.7.3/8.7.3) id UAA25276; Sat, 23 Nov 1996 20:26:45 -0500 (EST)
Resent-Date: Sat, 23 Nov 1996 20:26:45 -0500 (EST)
From: Zoltan Hidvegi <hzoli@cs.elte.hu>
Message-Id: <199611240003.BAA02995@hzoli.ppp.cs.elte.hu>
Subject: ((...)) fix
To: zsh-workers@math.gatech.edu (Zsh hacking and development)
Date: Sun, 24 Nov 1996 01:03:06 +0100 (MET)
X-Mailer: ELM [version 2.4ME+ PL17 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Resent-Message-ID: <"G_Uf2.0.pA6.KHwbo"@euclid>
Resent-From: zsh-workers@math.gatech.edu
X-Mailing-List: <zsh-workers@math.gatech.edu> archive/latest/2462
X-Loop: zsh-workers@math.gatech.edu
Precedence: list
Resent-Sender: zsh-workers-request@math.gatech.edu

There are two problems with the rewritten ((...)): it dumps core on (())
and it substitutes its body twice.

Zoltan

*** exec.c	1996/11/17 01:57:26	3.1.0.2
--- exec.c	1996/11/23 23:34:17	3.1.0.3
***************
*** 2356,2370 ****
  int
  execarith(Cmd cmd)
  {
!     char *e = (char *) getdata(firstnode(cmd->args));
!     int val;
  
!     singsub(&e);
!     if (errflag)
! 	return 1;
!     val = matheval(e);
      errflag = 0;
!     return(!val);
  }
  
  /* perform time ... command */
--- 2356,2368 ----
  int
  execarith(Cmd cmd)
  {
!     char *e;
!     long val = 0;
  
!     while ((e = (char *) ugetnode(cmd->args)))
! 	val = matheval(e);
      errflag = 0;
!     return !val;
  }
  
  /* perform time ... command */