Bug #8010
closed
Enumerator#with_index(large_number)
Description
Enumerator#with_index の引数で大きな数を指定するとマイナスになったり例外になったりするのはバグでしょうか?
% ruby -ve 'p 3.times.with_index(1<<61).to_a'
ruby 2.1.0dev (2013-03-04 trunk 39580) [x86_64-linux]
[[0, 2305843009213693952], [1, 2305843009213693953], [2, 2305843009213693954]]
% ruby -ve 'p 3.times.with_index(1<<62).to_a'
ruby 2.1.0dev (2013-03-04 trunk 39580) [x86_64-linux]
[[0, -4611686018427387904], [1, -4611686018427387903], [2, -4611686018427387902]]
% ruby -ve 'p 3.times.with_index(1<<63).to_a'
ruby 2.1.0dev (2013-03-04 trunk 39580) [x86_64-linux]
-e:1:in with_index': bignum too big to convert into long' (RangeError)
from -e:1:in each' from -e:1:in to_a'
from -e:1:in `'
Updated by nobu (Nobuyoshi Nakada) almost 12 years ago
- Status changed from Open to Closed
- % Done changed from 0 to 100
This issue was solved with changeset r39594.
Kazuhiro, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.
enumerator.c: allow Bignum for with_index
- enumerator.c (enumerator_with_index_i): allow Bignum as offset, to
get rid of conversion exception and integer overflow.
[ruby-dev:47131] [Bug #8010]
Updated by nagachika (Tomoyuki Chikanaga) about 11 years ago
r39594 and r39596 were backported to ruby_2_0_0 branch at 43960.
Updated by usa (Usaku NAKAMURA) almost 11 years ago
backported into ruby_1_9_3 at r44744.