[#46105] [ruby-trunk - Feature #6687][Open] Enumerable#with — "merborne (kyo endo)" <redmine@...>

14 messages 2012/07/02

[#46133] [ruby-trunk - Feature #6688][Open] Object#replace — "prijutme4ty (Ilya Vorontsov)" <prijutme4ty@...>

24 messages 2012/07/03

[#46160] [ruby-trunk - Feature #6693][Open] Don't warn for unused variables starting with _ — "marcandre (Marc-Andre Lafortune)" <ruby-core@...>

15 messages 2012/07/04

[#46200] [ruby-trunk - Bug #6702][Open] Date should be either required or not — "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>

14 messages 2012/07/05

[#46296] [ruby-trunk - Feature #6717][Open] Method like #instance_eval that returns self (like #tap) — "alexeymuranov (Alexey Muranov)" <redmine@...>

10 messages 2012/07/10

[#46320] [ruby-trunk - Feature #6721][Open] Object#yield_self — "alexeymuranov (Alexey Muranov)" <redmine@...>

25 messages 2012/07/11

[#46339] [ruby-trunk - Bug #6724][Open] waaaaaaant! ( — "zenspider (Ryan Davis)" <redmine@...>

11 messages 2012/07/11

[#46377] [ruby-trunk - Feature #6727][Open] Add Array#rest (with implementation) — "duckinator (Nick Markwell)" <nick@...>

25 messages 2012/07/13

[#46492] [ruby-trunk - Feature #6737][Open] Add Hash#read and alias as #[]. — "trans (Thomas Sawyer)" <transfire@...>

12 messages 2012/07/15

[#46500] [ruby-trunk - Feature #6739][Open] One-line rescue statement should support specifying an exception class — Quintus (Marvin Gülker) <sutniuq@...>

22 messages 2012/07/15

[#46562] [ruby-trunk - Feature #6758][Open] Object#sequence — "merborne (kyo endo)" <redmine@...>

19 messages 2012/07/20

[#46574] [ruby-trunk - Feature #6762][Open] Control interrupt timing — "ko1 (Koichi Sasada)" <redmine@...>

39 messages 2012/07/20

[#46641] [ruby-trunk - Bug #6780][Open] cannot compile zlib module, when cross-compiling. — "jinleileiking (lei king)" <jinleileiking@...>

14 messages 2012/07/23

[#46659] [ruby-trunk - Bug #6783][Open] Infinite loop in inspect, not overriding inspect, to_s, and no known circular references. Stepping into inspect in debugger locks it up with 100% CPU. — "garysweaver (Gary Weaver)" <garysweaver@...>

8 messages 2012/07/23

[#46792] [ruby-trunk - Bug #6799][Open] Digest::*.hexdigest returns an ASCII-8BIT String — "Eregon (Benoit Daloze)" <redmine@...>

11 messages 2012/07/26

[#46799] [ruby-trunk - Feature #6801][Open] String#~ for a here document — "merborne (kyo endo)" <redmine@...>

12 messages 2012/07/27

[#46829] [ruby-trunk - Feature #6806][Open] Support functional programming: forbid instance/class variables for ModuleName::method_name, allow for ModuleName.method_name — "alexeymuranov (Alexey Muranov)" <redmine@...>

7 messages 2012/07/28

[#46832] [ruby-trunk - Bug #6807][Open] Can't compile ruby without ruby — "devcurmudgeon (Paul Sherwood)" <storitel@...>

13 messages 2012/07/28

[#46834] [ruby-trunk - Feature #6808][Open] Implicit index for enumerations — "trans (Thomas Sawyer)" <transfire@...>

15 messages 2012/07/28

[#46838] [ruby-trunk - Bug #6810][Open] `module A::B; end` is not equivalent to `module A; module B; end; end` with respect to constant lookup (scope) — "alexeymuranov (Alexey Muranov)" <redmine@...>

17 messages 2012/07/28

[#46896] (Half-baked DRAFT) new `require' framework — SASADA Koichi <ko1@...>

Hi,

22 messages 2012/07/31

[ruby-core:46617] [ruby-trunk - Bug #6203][Open] Array#values_at does not handle ranges with end index past the end of the array

From: "marcandre (Marc-Andre Lafortune)" <ruby-core@...>
Date: 2012-07-23 00:11:41 UTC
List: ruby-core #46617
Issue #6203 has been updated by marcandre (Marc-Andre Lafortune).

Status changed from Closed to Open

Marking as open, since fix doesn't seem to correspond to what Matz wrote.

marcandre (Marc-Andre Lafortune) wrote:
> matz (Yukihiro Matsumoto) wrote:
> > The trailing nil must be a bug.
> 
> Was there a reason to change the behavior of `[].values_at(42..100)`? Could this not lead to incompatibilities?
> 
> Nobu: is there a reason not to fix `rb_range_beg_len` also as per [ruby-core:43811]?


----------------------------------------
Bug #6203: Array#values_at does not handle ranges with end index past the end of the array
https://bugs.ruby-lang.org/issues/6203#change-28283

Author: ferrous26 (Mark Rada)
Status: Open
Priority: Normal
Assignee: nobu (Nobuyoshi Nakada)
Category: core
Target version: 2.0.0
ruby -v: trunk


=begin
When I use Array#values_at I expect that it would be the same as successive calls to (({Array#[]})).

There is one case where this does not hold:

    a = [0,1,2,3,4,5]
    a[4..6] # => [4, 5]
    a.values_at(4..6) # => [4,5,nil]

I think this is an inconsistency in the design of (({Array#values_at})). We can look at a more extreme case:

    a[4..100] # => [4, 5]
    a.values_at 4..100 # => [4, 5, nil]

And now it doesn't make any sense.

I think the best solution would be to make (({Array#values_at})) be equivalent to successive calls to (({Array#[]})). I have patched (({rb_range_beg_len()})) to handle the extra case and opened a pull request on github.
=end


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