Bug #14958: rand(endless_range) raises TypeError (no implicit conversion of Range into Integer)

• Status: Closed
• Assignee: -
• Target version: 2.6
• ruby -v: ruby 2.6.0dev (2018-08-01 trunk 64154) [x86_64-linux]
• Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN

[znz (Kazuhiro NISHIYAMA)]

I think TypeError message is a bit strange.

$ ruby -v
ruby 2.6.0dev (2018-08-01 trunk 64154) [x86_64-linux]
$ ruby -e 'p rand(1..1)'
1
$ ruby -e 'rand(1..)'
Traceback (most recent call last):
        1: from -e:1:in `<main>'
-e:1:in `rand': no implicit conversion of Range into Integer (TypeError)
$ ruby -e 'rand(nil..nil)'
Traceback (most recent call last):
        1: from -e:1:in `<main>'
-e:1:in `rand': no implicit conversion of Range into Integer (TypeError)

[znz (Kazuhiro NISHIYAMA)]

• Description updated (diff)

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset trunk|r64167.

---

random.c: endless range random

• random.c (range_values): cannot determine the domain of an endless
  range. [ruby-core:88261] [Bug #14958]