[#62297] Re: [ruby-cvs:52906] nari:r45760 (trunk): * gc.c (gc_after_sweep): suppress unnecessary expanding heap. — Eric Wong <normalperson@...>
[email protected] wrote:
7 messages
2014/05/02
[#62307] Re: [ruby-cvs:52906] nari:r45760 (trunk): * gc.c (gc_after_sweep): suppress unnecessary expanding heap.
— SASADA Koichi <ko1@...>
2014/05/03
(2014/05/03 4:41), Eric Wong wrote:
[#62402] Re: [ruby-cvs:52906] nari:r45760 (trunk): * gc.c (gc_after_sweep): suppress unnecessary expanding heap.
— Eric Wong <normalperson@...>
2014/05/05
SASADA Koichi <[email protected]> wrote:
[#62523] [ruby-trunk - Feature #9632] [PATCH 0/2] speedup IO#close with linked-list from ccan — ko1@...
Issue #9632 has been updated by Koichi Sasada.
3 messages
2014/05/11
[#62556] doxygen (Re: Re: [ruby-trunk - Feature #9632] [PATCH 0/2] speedup IO#close with linked-list from ccan) — Tanaka Akira <akr@...>
2014-05-11 8:50 GMT+09:00 Eric Wong <[email protected]>:
3 messages
2014/05/13
[#62727] [RFC] vm_method.c (rb_method_entry_make): avoid freed me in m_tbl — Eric Wong <normalperson@...>
rb_unlink_method_entry may cause old_me to be swept before the new
7 messages
2014/05/24
[#63039] Re: [RFC] vm_method.c (rb_method_entry_make): avoid freed me in m_tbl
— SASADA Koichi <ko1@...>
2014/06/10
Hi,
[#63077] Re: [RFC] vm_method.c (rb_method_entry_make): avoid freed me in m_tbl
— Eric Wong <normalperson@...>
2014/06/10
SASADA Koichi <[email protected]> wrote:
[#63086] Re: [RFC] vm_method.c (rb_method_entry_make): avoid freed me in m_tbl
— SASADA Koichi <ko1@...>
2014/06/11
(2014/06/11 4:47), Eric Wong wrote:
[#63087] Re: [RFC] vm_method.c (rb_method_entry_make): avoid freed me in m_tbl
— Eric Wong <normalperson@...>
2014/06/11
SASADA Koichi <[email protected]> wrote:
[#62862] [RFC] README.EXT: document rb_gc_register_mark_object — Eric Wong <normalperson@...>
Any comment on officially supporting this as part of the C API?
5 messages
2014/05/30
[ruby-core:62310] [ruby-trunk - Bug #9799] [Open] change behavior of Math::atan2 if y and x are both Float::INFINITY
From:
cremno@...
Date:
2014-05-03 03:16:11 UTC
List:
ruby-core #62310
Issue #9799 has been reported by cremno phobia. ---------------------------------------- Bug #9799: change behavior of Math::atan2 if y and x are both Float::INFINITY https://bugs.ruby-lang.org/issues/9799 * Author: cremno phobia * Status: Open * Priority: Normal * Assignee: * Category: * Target version: * ruby -v: ruby 2.2.0dev (2014-05-03) [x64-mswin64_120] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- The current behavior when y and x are either negative or positive infinity is: ~~~ruby Math.atan2(Float::INFINITY, Float::INFINITY) # raises Math::DomainError ~~~ The attached diff changes it to: ~~~ruby Math.atan2(Float::INFINITY, Float::INFINITY) # => 0.7853981633974483 ~~~ I think a domain error isn't desirable here. Is it even one? Other languages like Go, Python, Java or Javascript seem to return the expected result. .NET languages return NaN. ISO C99/C11 also does, if the implementation follows the normative Annex F. This isn't always the case, but there is already a special case when y and x are zero, so I think this one is acceptable, too. http://golang.org/src/pkg/math/atan2.go http://hg.python.org/cpython/file/62438d1b11c7/Modules/mathmodule.c#l516 http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#atan2%28double,%20double%29 http://www.ecma-international.org/ecma-262/5.1/#sec-15.8.2.5 http://port70.net/~nsz/c/c99/n1256.html#F.9.1.4 http://msdn.microsoft.com/en-us/library/system.math.atan2.aspx ---Files-------------------------------- f36b9cd63c8218d17a4ddf346a88b9d64a62f557.diff (1.58 KB) -- https://bugs.ruby-lang.org/