Bug #6053

Enumerator#rewind goes to beginning instead of decrementing one step.

Added by Chris Maddox about 2 years ago. Updated about 2 years ago.

[ruby-core:42767]
Status:Closed
Priority:Normal
Assignee:-
Category:-
Target version:1.9.3
ruby -v:ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.3.0] Backport:

Description

From the ruby docs:
rewind → e
Rewinds the enumeration sequence by one step.

In practice, however, it fully rewinds (either change documentation or have it do what it says. Going back one step is nice though):
irb(main):001:0> a = [1,2,3,4]
=> [1, 2, 3, 4]
irb(main):002:0> b = a.to_enum
=> #
irb(main):007:0> b.next
=> 1
irb(main):008:0> b.next
=> 2
irb(main):009:0> b.next
=> 3
irb(main):010:0> b.rewind
=> #
irb(main):011:0> b.next
=> 1

Associated revisions

Revision 34712
Added by Yukihiro Matsumoto about 2 years ago

  • enumerator.c (enumerator_rewind): update the documentation. fixed: #6053

History

#1 Updated by Yukihiro Matsumoto about 2 years ago

It is a bug in documentation. #rewind method rewinds the sequence to the beginning.

#2 Updated by Yukihiro Matsumoto about 2 years ago

  • Status changed from Open to Closed
  • % Done changed from 0 to 100

This issue was solved with changeset r34712.
Chris, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.


  • enumerator.c (enumerator_rewind): update the documentation. fixed: #6053

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