* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
@ 2020-04-27 7:12 Aitor Soroa
2020-04-27 8:14 ` Andreas Schwab
2020-04-30 12:53 ` Mattias Engdegård
0 siblings, 2 replies; 9+ messages in thread
From: Aitor Soroa @ 2020-04-27 7:12 UTC (permalink / raw)
To: 40892
The calculator.el: wrongly returns integers. For instance:
emacs -Q
M-x calculator
22 / 7
The answer is '3'. Even worse, If I set calculator-remove-zeros to nil,
then I get '3.000'
In GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
of 2019-09-16 built on lcy01-amd64-030
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Ubuntu 18.04.4 LTS
Recent messages:
Configuring package ido...done
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Loading package projectile...
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Loading package ccls...
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Loading package ccls...done (0.388s)
For information about GNU Emacs and the GNU system, type C-h C-a.
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^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
2020-04-27 7:12 bug#40892: 26.3; emacs calculator.el: return values are truncated integers Aitor Soroa
@ 2020-04-27 8:14 ` Andreas Schwab
2020-04-27 9:12 ` Tomas Nordin
2020-04-30 12:53 ` Mattias Engdegård
1 sibling, 1 reply; 9+ messages in thread
From: Andreas Schwab @ 2020-04-27 8:14 UTC (permalink / raw)
To: Aitor Soroa; +Cc: 40892
On Apr 27 2020, Aitor Soroa wrote:
> The calculator.el: wrongly returns integers. For instance:
>
> emacs -Q
> M-x calculator
> 22 / 7
>
> The answer is '3'. Even worse, If I set calculator-remove-zeros to nil,
> then I get '3.000'
This is consistent with how Emacs Lisp works:
ELISP> (/ 22 7)
3 (#o3, #x3, ?\C-c)
ELISP> (/ 22 7.0)
3.142857142857143
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
2020-04-27 8:14 ` Andreas Schwab
@ 2020-04-27 9:12 ` Tomas Nordin
2020-04-29 15:57 ` Noam Postavsky
0 siblings, 1 reply; 9+ messages in thread
From: Tomas Nordin @ 2020-04-27 9:12 UTC (permalink / raw)
To: Andreas Schwab, Aitor Soroa; +Cc: 40892
Andreas Schwab <schwab@linux-m68k.org> writes:
> On Apr 27 2020, Aitor Soroa wrote:
>
>> The calculator.el: wrongly returns integers. For instance:
>>
>> emacs -Q
>> M-x calculator
>> 22 / 7
>>
>> The answer is '3'. Even worse, If I set calculator-remove-zeros to nil,
>> then I get '3.000'
>
> This is consistent with how Emacs Lisp works:
>
> ELISP> (/ 22 7)
> 3 (#o3, #x3, ?\C-c)
> ELISP> (/ 22 7.0)
> 3.142857142857143
It might be a bit surprising through an interface that is meant to be
similar to popular calc apps (if meant so). On the other hand maybe one
wants to do integer divisions as well. This report could be a suggestion
of a new variable like 'treat-input-integers-as-floats'.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
2020-04-27 9:12 ` Tomas Nordin
@ 2020-04-29 15:57 ` Noam Postavsky
0 siblings, 0 replies; 9+ messages in thread
From: Noam Postavsky @ 2020-04-29 15:57 UTC (permalink / raw)
To: Tomas Nordin; +Cc: 40892, Aitor Soroa, Andreas Schwab
>>> M-x calculator
>>> 22 / 7
>>>
>>> The answer is '3'.
>> ELISP> (/ 22 7)
>> 3 (#o3, #x3, ?\C-c)
>> ELISP> (/ 22 7.0)
>> 3.142857142857143
>
> It might be a bit surprising through an interface that is meant to be
> similar to popular calc apps (if meant so). On the other hand maybe one
> wants to do integer divisions as well. This report could be a suggestion
> of a new variable like 'treat-input-integers-as-floats'.
There is already an integer division operation:
22.0 / 7 RET ===> 3.143
22.0 \ 7 RET ===> 3
But we probably do still want an option, just because existing users may
want to keep the current behaviour.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
2020-04-27 7:12 bug#40892: 26.3; emacs calculator.el: return values are truncated integers Aitor Soroa
2020-04-27 8:14 ` Andreas Schwab
@ 2020-04-30 12:53 ` Mattias Engdegård
2020-04-30 12:59 ` Noam Postavsky
1 sibling, 1 reply; 9+ messages in thread
From: Mattias Engdegård @ 2020-04-30 12:53 UTC (permalink / raw)
To: Noam Postavsky
Cc: Andreas Schwab, 40892, Aitor Soroa, Tomas Nordin, Eli Barzilay
> But we probably do still want an option, just because existing users may want to keep the current behaviour.
No we don't. It's a clear bug; let's just fix it.
In fact, it's a regression; in 22.1, at least, it works correctly. Looks like it was f248292ede.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
2020-04-30 12:53 ` Mattias Engdegård
@ 2020-04-30 12:59 ` Noam Postavsky
2020-04-30 13:15 ` Mattias Engdegård
0 siblings, 1 reply; 9+ messages in thread
From: Noam Postavsky @ 2020-04-30 12:59 UTC (permalink / raw)
To: Mattias Engdegård
Cc: Andreas Schwab, 40892, Aitor Soroa, Eli Barzilay, Tomas Nordin
found 40892 26.1
tags 40892 + confirmed
quit
Mattias Engdegård <mattiase@acm.org> writes:
>> But we probably do still want an option, just because existing users may want to keep the current behaviour.
>
> No we don't. It's a clear bug; let's just fix it.
>
> In fact, it's a regression; in 22.1, at least, it works correctly. Looks like it was f248292ede.
Ah, you're right. It works as expected in 25.3 as well.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
2020-04-30 12:59 ` Noam Postavsky
@ 2020-04-30 13:15 ` Mattias Engdegård
2020-04-30 14:05 ` Eli Zaretskii
2020-04-30 17:08 ` Eli Barzilay
0 siblings, 2 replies; 9+ messages in thread
From: Mattias Engdegård @ 2020-04-30 13:15 UTC (permalink / raw)
To: 40892-done
Cc: Andreas Schwab, Eli Barzilay, Aitor Soroa, Tomas Nordin,
Noam Postavsky
The simplest possible solution is to convert input numbers to float, which used to be how it worked. Done on emacs-27.
Thanks for the report!
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
2020-04-30 13:15 ` Mattias Engdegård
@ 2020-04-30 14:05 ` Eli Zaretskii
2020-04-30 17:08 ` Eli Barzilay
1 sibling, 0 replies; 9+ messages in thread
From: Eli Zaretskii @ 2020-04-30 14:05 UTC (permalink / raw)
To: Mattias Engdegård; +Cc: 40892, a.soroa
> From: Mattias Engdegård <mattiase@acm.org>
> Date: Thu, 30 Apr 2020 15:15:13 +0200
> Cc: Andreas Schwab <schwab@suse.de>, Eli Barzilay <eli@barzilay.org>,
> Aitor Soroa <a.soroa@ehu.eus>, Tomas Nordin <tomasn@posteo.net>,
> Noam Postavsky <npostavs@gmail.com>
>
> The simplest possible solution is to convert input numbers to float, which used to be how it worked. Done on emacs-27.
I've reverted it, sorry. Please don't put on emacs-27 anything that
doesn't have to be there.
This fix should go to master.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#40892: 26.3; emacs calculator.el: return values are truncated integers
2020-04-30 13:15 ` Mattias Engdegård
2020-04-30 14:05 ` Eli Zaretskii
@ 2020-04-30 17:08 ` Eli Barzilay
1 sibling, 0 replies; 9+ messages in thread
From: Eli Barzilay @ 2020-04-30 17:08 UTC (permalink / raw)
To: Mattias Engdegård
Cc: Andreas Schwab, 40892-done, Aitor Soroa, Tomas Nordin,
Noam Postavsky
Thanks for finally fixing it! I've noticed this bug a long time ago,
and didn't get to fixing it, thinking that some would argue for a flag
instead of just going back to the original behavior...
On Thu, Apr 30, 2020 at 9:15 AM Mattias Engdegård <mattiase@acm.org> wrote:
>
> The simplest possible solution is to convert input numbers to float, which used to be how it worked. Done on emacs-27.
>
> Thanks for the report!
>
--
((x=>x(x))(x=>x(x))) Eli Barzilay:
http://barzilay.org/ Maze is Life!
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2020-04-30 17:08 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-04-27 7:12 bug#40892: 26.3; emacs calculator.el: return values are truncated integers Aitor Soroa
2020-04-27 8:14 ` Andreas Schwab
2020-04-27 9:12 ` Tomas Nordin
2020-04-29 15:57 ` Noam Postavsky
2020-04-30 12:53 ` Mattias Engdegård
2020-04-30 12:59 ` Noam Postavsky
2020-04-30 13:15 ` Mattias Engdegård
2020-04-30 14:05 ` Eli Zaretskii
2020-04-30 17:08 ` Eli Barzilay
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