[#39810] 2.0 feature questionnaire — SASADA Koichi <ko1@...>

I made a questionnaire "What do you want to introduce in 2.0?" in my

59 messages 2011/10/01
[#39822] Re: 2.0 feature questionnaire — Jeremy Kemper <jeremy@...> 2011/10/02

2011/10/1 SASADA Koichi <[email protected]>:

[#39827] Re: 2.0 feature questionnaire — Yukihiro Matsumoto <matz@...> 2011/10/02

Hi,

[#40324] Re: 2.0 feature questionnaire — Charles Oliver Nutter <headius@...> 2011/10/25

2011/10/1 SASADA Koichi <[email protected]>:

[#39823] Discussion results — SASADA Koichi <ko1@...>

Hi,

34 messages 2011/10/02
[#39840] Re: Discussion results — Intransition <transfire@...> 2011/10/02

I did not have the fortune of attending the discussion, but I would

[#39844] Re: Discussion results — Yukihiro Matsumoto <matz@...> 2011/10/02

Hi,

[#39851] Re: Discussion results (here documents with indents) — "Martin J. Dürst" <duerst@...> 2011/10/03

Hello Matz,

[#39862] Re: Discussion results (here documents with indents) — Yusuke Endoh <mame@...> 2011/10/03

Hello,

[#39874] Re: Discussion results (here documents with indents) — Trans <transfire@...> 2011/10/03

On Mon, Oct 3, 2011 at 8:16 AM, Yusuke Endoh <[email protected]> wrote:

[#39915] [Ruby 1.9 - Feature #5400][Open] Remove flip-flops in 2.0 — Magnus Holm <judofyr@...>

29 messages 2011/10/04

[#39957] [Ruby 1.9 - Bug #5407][Open] Cannot build ruby-1.9.3-rc1 with TDM-GCC 4.6.1 on Windows XP SP3 — Heesob Park <phasis@...>

11 messages 2011/10/05

[#39993] [Ruby 1.9 - Feature #2348] RBTree Should be Added to the Standard Library — David Graham <david.malcom.graham@...>

10 messages 2011/10/06

[#40037] [Ruby 1.9 - Bug #5422][Open] File.fnmatch != Dir.glob # {no,sets} — Suraj Kurapati <sunaku@...>

14 messages 2011/10/07

[#40073] [Ruby 1.9 - Feature #5427][Open] Not complex patch to improve `require` time (load.c) — Yura Sokolov <funny.falcon@...>

31 messages 2011/10/09

[#40090] [Ruby 1.9 - Bug #5433][Open] PTY.spawn Kernel panic on macos lion — Gamaliel Toro <argami@...>

14 messages 2011/10/10

[#40188] [Ruby 2.0 - Feature #5454] keyword arguments — Yukihiro Matsumoto <matz@...>

16 messages 2011/10/17
[#40189] Re: [Ruby 2.0 - Feature #5454] keyword arguments — Evan Phoenix <evan@...> 2011/10/17

This looks very interesting=21 Would someone be willing to translate to e=

[#40191] Re: [Ruby 2.0 - Feature #5454] keyword arguments — Yutaka Hara <yutaka.hara@...> 2011/10/18

Hi,

[#40192] Re: [Ruby 2.0 - Feature #5454] keyword arguments — Yukihiro Matsumoto <matz@...> 2011/10/18

Hi,

[#40259] Counseling — Perry Smith <pedzsan@...>

Ruby and I are back in counseling... Its always the same thing with =

21 messages 2011/10/21
[#40263] Re: Counseling — "Haase, Konstantin" <Konstantin.Haase@...> 2011/10/21

What's your $LC_CTYPE? What OS are you on?

[#40264] Re: Counseling — Gon軋lo Silva <goncalossilva@...> 2011/10/21

Hi all,

[#40266] Re: Counseling — Bill Kelly <billk@...> 2011/10/21

Gon軋lo Silva wrote:

[#40271] Can rubygems save us from "binary-compatibility hell"? — Yusuke Endoh <mame@...>

Hello, rubygems developers --

17 messages 2011/10/22

[#40290] [ruby-trunk - Feature #5474][Assigned] keyword argument — Yusuke Endoh <mame@...>

36 messages 2011/10/23
[#40298] Re: [ruby-trunk - Feature #5474][Assigned] keyword argument — Yukihiro Matsumoto <matz@...> 2011/10/24

Hi,

[#40414] Re: [ruby-trunk - Feature #5474][Assigned] keyword argument — Charles Oliver Nutter <headius@...> 2011/10/26

More refinement below. I think we're on a good path here.

[#40416] Re: [ruby-trunk - Feature #5474][Assigned] keyword argument — Yukihiro Matsumoto <matz@...> 2011/10/26

Hi,

[#40418] Re: [ruby-trunk - Feature #5474][Assigned] keyword argument — Joshua Ballanco <jballanc@...> 2011/10/26

On Wed, Oct 26, 2011 at 2:08 PM, Yukihiro Matsumoto <[email protected]>wrote:

[#40425] Re: [ruby-trunk - Feature #5474][Assigned] keyword argument — Yukihiro Matsumoto <matz@...> 2011/10/27

Hi,

[#40311] [ruby-trunk - Feature #5478][Open] import Set into core, add syntax — Konstantin Haase <Konstantin.Haase@...>

33 messages 2011/10/24

[#40312] [ruby-trunk - Feature #5479][Open] import StringIO into core, add String#to_io — Konstantin Haase <Konstantin.Haase@...>

9 messages 2011/10/24

[#40316] [ruby-trunk - Feature #5481][Open] Gemifying Ruby standard library — Hiroshi Nakamura <nakahiro@...>

86 messages 2011/10/24
[#40334] [ruby-trunk - Feature #5481] Gemifying Ruby standard library — Lucas Nussbaum <lucas@...> 2011/10/25

[#40322] [ruby-trunk - Feature #5482][Open] Rubinius as basis for Ruby 2.0 — Thomas Sawyer <transfire@...>

19 messages 2011/10/25

[#40356] JIT development for MRI — Carter Cheng <cartercheng@...>

Hello,

25 messages 2011/10/25
[#40390] Re: JIT development for MRI — SASADA Koichi <ko1@...> 2011/10/26

Hi,

[#40394] Re: JIT development for MRI — Carter Cheng <cartercheng@...> 2011/10/26

Dear Koichi SASADA,

[#40395] Re: JIT development for MRI — Carter Cheng <cartercheng@...> 2011/10/26

I noticed that you used context threading in YARV. Do you have some analysis

[#40417] Re: JIT development for MRI — SASADA Koichi <ko1@...> 2011/10/26

Thanks for reference.

[#40423] Re: JIT development for MRI — Carter Cheng <cartercheng@...> 2011/10/26

Thanks Koichi.

[#40412] [ruby-trunk - Bug #5486][Open] rb_stat() doesn’t respect input encoding — Nikolai Weibull <now@...>

15 messages 2011/10/26

[#40462] [ruby-trunk - Bug #5492][Open] MinGW Installation with Ruby 1.9.3rc1 Broken — Charlie Savage <cfis@...>

14 messages 2011/10/27

[#40573] [ruby-trunk - Bug #5530][Open] SEEK_SET malfunctions when used with 'append' File.open mode — "Joshua J. Drake" <ruby-lang.jdrake@...>

17 messages 2011/10/31

[#40586] [ruby-trunk - Feature #5531][Open] deep_value for dealing with nested hashes — Kyle Peyton <kylepeyton@...>

19 messages 2011/10/31

[ruby-core:40514] [ruby-trunk - Feature #5321] Introducing Numeric#exact? and Numeric#inexact?

From: Alexey Muranov <muranov@...>
Date: 2011-10-29 22:09:31 UTC
List: ruby-core #40514
Issue #5321 has been updated by Alexey Muranov.


I like this proposal. -Alexey.
----------------------------------------
Feature #5321: Introducing Numeric#exact? and Numeric#inexact?
http://redmine.ruby-lang.org/issues/5321

Author: Kenta Murata
Status: Open
Priority: Normal
Assignee: Yukihiro Matsumoto
Category: 
Target version: 


Ruby has several numeric classes such as Integer.
These classes are classified whether their instances represent numbers exactly.
According to this, Integer and Rational are exact, and Float and BigDecimal are inexact because they're always including error.
The exactness of a Complex depends on its real and imaginary parts.

Now, Ruby's numeric classes doesn't provide predicators to investigate the exactness of their instances.
So, if we want to examine whether a number is exactly zero, we must investigate the class of the number.
I want simple way to examine the number exactness.

I propose to introduce Numeric#exact? and/or Numeric#inexact? for resolving this inconvenience.



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