[#78949] [Ruby trunk Feature#13095] [PATCH] io.c (rb_f_syscall): remove deprecation notice — kosaki.motohiro@...
Issue #13095 has been updated by Motohiro KOSAKI.
3 messages
2017/01/03
[#78997] [Ruby trunk Bug#13110] Byte-based operations for String — shugo@...
SXNzdWUgIzEzMTEwIGhhcyBiZWVuIHVwZGF0ZWQgYnkgU2h1Z28gTWFlZGEuCgoKTGV0IG1lIHNo
3 messages
2017/01/06
[#79228] Re: [ruby-cvs:64576] naruse:r57410 (trunk): Prevent GC by volatile [Bug #13150] — Eric Wong <normalperson@...>
naruse@ruby-lang.org wrote:
5 messages
2017/01/23
[#79511] Re: [ruby-cvs:64576] naruse:r57410 (trunk): Prevent GC by volatile [Bug #13150]
— Eric Wong <normalperson@...>
2017/02/13
Eric Wong <normalperson@yhbt.net> wrote:
[#79518] Re: [ruby-cvs:64576] naruse:r57410 (trunk): Prevent GC by volatile [Bug #13150]
— Nobuyoshi Nakada <nobu@...>
2017/02/13
On 2017/02/13 10:04, Eric Wong wrote:
[#79298] [Ruby trunk Bug#13085][Assigned] io.c io_fwrite creates garbage — nobu@...
Issue #13085 has been updated by Nobuyoshi Nakada.
3 messages
2017/01/29
[#79337] Re: [ruby-changes:45397] normal:r57469 (trunk): io.c: recycle garbage on write — SASADA Koichi <ko1@...>
Eric:
4 messages
2017/01/31
[#79352] Re: [ruby-changes:45397] normal:r57469 (trunk): io.c: recycle garbage on write
— Eric Wong <normalperson@...>
2017/01/31
SASADA Koichi <ko1@atdot.net> wrote:
[ruby-core:79253] [Ruby trunk Bug#13152] Numeric parsing differences between ruby <-> crystal
From:
ksmakoto@...4u.or.jp
Date:
2017-01-25 01:10:51 UTC
List:
ruby-core #79253
Issue #13152 has been updated by Makoto Kishimoto.
~~~
$ nawk --version
awk version 20121220 (FreeBSD)
$ nawk 'END { printf("%d\n", -2 ** 4) }' < /dev/null
-16
~~~
----------------------------------------
Bug #13152: Numeric parsing differences between ruby <-> crystal
https://bugs.ruby-lang.org/issues/13152#change-62667
* Author: Jabari Zakiya
* Status: Rejected
* Priority: Normal
* Assignee:
* Target version:
* ruby -v:
* Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
I noticed this difference between ruby and crystal when converting a gem.
```ruby
puts -2**4 -> -16 (ruby) || 16 (crystal)
puts (-2)**4 -> 16 (both)
```
ruby parses `-2**4` as `-(2**4)`, while crystal does `(-2)**4`, which is more intuitive.
This creates need to be careful converting negative number usage from ruby <-> crystal.
(I haven't investigated differences with other languages.)
Using parentheses to explicitly create intended outcomes can overcome this.
However, on the heels of the discussion/decision to not change the default rounding behavior of numerics
in 2.4.0 would it also be worth it to change this parsing behavior to make this more natural
and intuitive, as in crystal?
--
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