[#85349] [Ruby trunk Bug#14334] Segmentation fault after running rspec (ruby/2.5.0/erb.rb:885 / simplecov/source_file.rb:85) — pragtob@...
Issue #14334 has been updated by PragTob (Tobias Pfeiffer).
3 messages
2018/02/02
[#85358] Re: [ruby-cvs:69220] nobu:r62039 (trunk): compile.c: unnecessary freezing — Eric Wong <normalperson@...>
nobu@ruby-lang.org wrote:
5 messages
2018/02/03
[#85612] Why require autoconf 2.67+ — leam hall <leamhall@...>
Please pardon the intrusion; I am new to Ruby and like to pull the
6 messages
2018/02/17
[#85634] [Ruby trunk Bug#14494] [PATCH] tool/m4/ruby_replace_type.m4 use AC_CHECK_TYPES for HAVE_* macros — normalperson@...
Issue #14494 has been reported by normalperson (Eric Wong).
3 messages
2018/02/19
[#85674] [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid — matz@...
Issue #13618 has been updated by matz (Yukihiro Matsumoto).
5 messages
2018/02/20
[#85686] Re: [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid
— Eric Wong <normalperson@...>
2018/02/20
matz@ruby-lang.org wrote:
[#85704] Re: [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid
— Koichi Sasada <ko1@...>
2018/02/21
On 2018/02/20 18:06, Eric Wong wrote:
[ruby-core:85354] [Ruby trunk Bug#13928] Calling Integer.fdiv with BigDecimal returns unexpected result
From:
nagachika00@...
Date:
2018-02-03 02:05:23 UTC
List:
ruby-core #85354
Issue #13928 has been updated by nagachika (Tomoyuki Chikanaga).
Backport changed from 2.2: DONTNEED, 2.3: DONTNEED, 2.4: REQUIRED to 2.2: DONTNEED, 2.3: DONTNEED, 2.4: DONE
ruby_2_4 r62171 merged revision(s) 59986.
----------------------------------------
Bug #13928: Calling Integer.fdiv with BigDecimal returns unexpected result
https://bugs.ruby-lang.org/issues/13928#change-70138
* Author: calle.vander@gmail.com (Carl Vander)
* Status: Closed
* Priority: Normal
* Assignee:
* Target version:
* ruby -v: 2.4.2p198
* Backport: 2.2: DONTNEED, 2.3: DONTNEED, 2.4: DONE
----------------------------------------
After upgrading a Rails project from 2.3.1 to 2.4.2 I ran into a number of failing tests. Seems like to behaviour of fdiv and conjuction with bigdecimal is wrong.
### Reproduce by running:
```ruby
irb(main):001:0> require 'bigdecimal'
=> true
irb(main):002:0> 1.fdiv(1-BigDecimal.new("0"))
=> 2.1296133346e-314
```
Ruby version: ruby 2.4.2p198 (2017-09-14 revision 59899) [x86_64-darwin16]
### I would expect the calculation to return 1, which is correctly done if converting the big decimal to a float first:
```ruby
irb(main):006:0> 1.fdiv(1-BigDecimal.new("0").to_f)
=> 1.0
```
### Using ruby 2.3.1p112, it also looks OK:
```ruby
irb(main):001:0> require 'bigdecimal'
=> true
irb(main):002:0> 1.fdiv(1-BigDecimal.new("0"))
=> #<BigDecimal:7fb6b8949690,'0.1E1',9(36)>
irb(main):003:0> 1.fdiv(1-BigDecimal.new("0")).to_i
=> 1
--
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