GNU bug report logs - #1334
23.0.60; bug of bytecomp arithmetic operations

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Message #40 received at 1334 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Shigeru Fukaya" <shigeru.fukaya <at> gmail.com>
To: "Chong Yidong" <cyd <at> stupidchicken.com>
Cc: <1334 <at> debbugs.gnu.org>
Subject: Re: 23.0.60; bug of bytecomp arithmetic operations
Date: Fri, 21 Nov 2008 18:11:04 +0900

Hi, Chong,

> Shouldn't this be (nth 2 form) on the last line?
Of course, you are right.

I found  I had tested with my older version.
In `byte-regression-test', I should have remove the following line.

   (load "byte-opt-minimal")

After above correction, log output contains three errors.

(let ((a 3) (b 2) (c 1.0)) (- 0 a)) --> -3, NG
--> 0
(let ((a 3) (b 2) (c 1.0)) (- 0 c)) --> -1.0, NG
--> 0
(let ((a 3) (b 2) (c 1.0)) (- 0 a)) --> -3, NG
--> 0

Thank you,

- Shigeru


----- Original Message ----- 
From: "Chong Yidong" <cyd <at> stupidchicken.com>
To: "Shigeru Fukaya" <shigeru.fukaya <at> gmail.com>
Cc: <1334 <at> debbugs.gnu.org>
Sent: Friday, November 21, 2008 4:40 PM
Subject: Re: 23.0.60; bug of bytecomp arithmetic operations


> Thanks.  I'm looking through your changes.
> 
> !      ;; (- 0 x) --> (- x)
> !      ((and (eq (nth 1 form) 0) (= (length form) 3))
> !       (setq form (list '- (nth 1 form))))
> 
> Shouldn't this be (nth 2 form) on the last line?

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