[#80531] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — Eric Wong <normalperson@...>

SASADA Koichi <ko1@ruby-lang.org> wrote:

24 messages 2017/04/02
[#80532] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — SASADA Koichi <ko1@...> 2017/04/02

On 2017/04/02 11:35, Eric Wong wrote:

[#80540] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — Eric Wong <normalperson@...> 2017/04/03

SASADA Koichi <ko1@atdot.net> wrote:

[#81027] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — Eric Wong <normalperson@...> 2017/05/08

Eric Wong <normalperson@yhbt.net> wrote:

[#81028] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — SASADA Koichi <ko1@...> 2017/05/08

On 2017/05/08 9:33, Eric Wong wrote:

[#81029] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — SASADA Koichi <ko1@...> 2017/05/08

On 2017/05/08 10:53, SASADA Koichi wrote:

[#81031] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — Eric Wong <normalperson@...> 2017/05/08

SASADA Koichi <ko1@atdot.net> wrote:

[#81033] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — SASADA Koichi <ko1@...> 2017/05/08

On 2017/05/08 12:01, Eric Wong wrote:

[#81035] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — Eric Wong <normalperson@...> 2017/05/08

SASADA Koichi <ko1@atdot.net> wrote:

[#81042] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — SASADA Koichi <ko1@...> 2017/05/09

On 2017/05/08 15:36, Eric Wong wrote:

[#81044] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — Eric Wong <normalperson@...> 2017/05/09

SASADA Koichi <ko1@atdot.net> wrote:

[#81045] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — SASADA Koichi <ko1@...> 2017/05/09

On 2017/05/09 12:38, Eric Wong wrote:

[#81047] Re: [ruby-cvs:65407] normal:r58236 (trunk): thread.c: comments on M:N threading [ci skip] — Eric Wong <normalperson@...> 2017/05/09

SASADA Koichi <ko1@atdot.net> wrote:

[ruby-core:80804] [Ruby trunk Feature#10169] It might be better to make Mathn class deprecated

From: hsbt@...
Date: 2017-04-20 08:38:27 UTC
List: ruby-core #80804
Issue #10169 has been updated by hsbt (Hiroshi SHIBATA).


Note: We need to remove Math mode from irb before unbundling mathn. So it uses mathn library.

After that, We can remove mathn from ruby core. and ship rubygems.

I will do it.

----------------------------------------
Feature #10169: It might be better to make Mathn class deprecated
https://bugs.ruby-lang.org/issues/10169#change-64400

* Author: gogotanaka (Kazuki Tanaka)
* Status: Assigned
* Priority: Normal
* Assignee: hsbt (Hiroshi SHIBATA)
* Target version: 2.5
----------------------------------------
#English

As I mentioned in https://bugs.ruby-lang.org/issues/10086#change-48156,

1. Now that we are able to hundle complex exponents without mathn.

2. And overriding `\` with `quo` has too much side effect. I suppose we should not implement such a thing in ruby standard library.

3. Requiring and integrating other standard libraries doesn't make sense.

This is why I think it might be better to make Mathn class deprecated and disabled in the future.

#日本語(すみませんまだ英語が拙く、意図をより正確にお伝えするため日本語も記載させて頂きます)

僕がこちらのissueで述べさせて頂いた通り、https://bugs.ruby-lang.org/issues/10086#change-48156

1. `mathn` で実装されている冪乗演算は `mathn` を用いずとも現在は実現されている事

2. `mathn` 内で行われている `\` を `quo` でオーバーライドする事は副作用が強く、またこの種のオーバーライドが必要な場面は多くなく、必要な場合でも自ら実装する事が多いと推測される事

3. 各種数学関連のモジュールをrequireする機能もあまり意味を持たない事



以上の理由より、とりわけRubyの標準ライブラリーで現在の`mathn` を提供する必要を感じません.

よって`mathn`を非推奨に、ゆくゆくは廃止してしまうのが良いと考えています.



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