[#45382] [ruby-trunk - Feature #6530][Open] Improve Racc documentation coverage — "zzak (Zachary Scott)" <zachary@...>
5 messages
2012/06/02
[#45431] [ruby-trunk - Bug #6548][Open] Rake doesn't ignore arguments after -- — "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>
12 messages
2012/06/05
[#45442] 1.8.7 to come this month — Urabe Shyouhei <shyouhei@...>
Hello. As I wrote before I will release a 1.8.7 patchlevel in this month.
5 messages
2012/06/06
[#45474] [ANN] Request for "slide-show" of your feature proposal — Yusuke Endoh <mame@...>
(Japanese later; 日本語が後にあります)
18 messages
2012/06/07
[#45483] Re: [ANN] Request for "slide-show" of your feature proposal
— Rodrigo Rosenfeld Rosas <rr.rosas@...>
2012/06/07
Is this what you were talking about?
[#46009] Re: [ANN] Request for "slide-show" of your feature proposal
— Aaron Patterson <tenderlove@...>
2012/06/30
On Thu, Jun 07, 2012 at 11:59:12PM +0900, Yusuke Endoh wrote:
[#46332] Re: [ANN] Request for "slide-show" of your feature proposal
— Roger Pack <rogerdpack2@...>
2012/07/11
> * at most THREE proposals per person
[#45552] [ruby-trunk - Bug #6571][Assigned] Time.mktime Y2K38 problem on 1.9.3p125 i386-mingw32 — "MartinBosslet (Martin Bosslet)" <Martin.Bosslet@...>
10 messages
2012/06/10
[#45563] [ruby-trunk - Bug #6573][Open] Webrick test failures — "bkabrda (Bohuslav Kabrda)" <bkabrda@...>
19 messages
2012/06/11
[#45589] Developers' meeting (7/21) — Yusuke Endoh <mame@...>
Hello, committers
10 messages
2012/06/12
[#45623] Re: Developers' meeting (7/21)
— Yusuke Endoh <mame@...>
2012/06/13
Four seats are now left.
[#45647] [ruby-trunk - Bug #6592][Open] test_call_double(DL::TestDL) fails on ARM HardFP — "vo.x (Vit Ondruch)" <v.ondruch@...>
15 messages
2012/06/14
[#45664] [ruby-trunk - Bug #6596][Open] New method for Arrays : Array#index — "robin850 (Robin Dupret)" <robin.dupret@...>
20 messages
2012/06/15
[#45694] [ruby-trunk - Feature #6602][Open] Tail call optimization: enable by default? — "ko1 (Koichi Sasada)" <redmine@...>
12 messages
2012/06/18
[#45715] [ruby-trunk - Feature #6609][Open] Toplevel as self extended module — "trans (Thomas Sawyer)" <transfire@...>
17 messages
2012/06/19
[#45732] [ruby-trunk - Bug #6614][Open] GC doesn't collect objects bound to (collectable) proc — "rogerdpack (Roger Pack)" <rogerpack2005@...>
9 messages
2012/06/20
[#45735] [ruby-trunk - Bug #6616][Open] MinGW: cannot build extensions or run tests due changes in exec_arg? — "luislavena (Luis Lavena)" <luislavena@...>
9 messages
2012/06/21
[#45749] [ruby-trunk - Bug #6616] MinGW: cannot build extensions or run tests due changes in exec_arg?
— "phasis68 (Heesob Park)" <phasis@...>
2012/06/21
[#45785] How can I contribute? — David Albert <davidbalbert@...>
Hello ruby-core,
6 messages
2012/06/22
[#45798] [ruby-trunk - Bug #6634][Open] Deadlock with join and ConditionVariable — "meh. (meh. I don't care)" <meh@...>
20 messages
2012/06/23
[#45805] [ruby-trunk - Feature #6636][Open] Enumerable#size — "marcandre (Marc-Andre Lafortune)" <ruby-core@...>
15 messages
2012/06/23
[#45822] [ruby-trunk - Feature #6641][Open] Hash.auto constructor — "trans (Thomas Sawyer)" <transfire@...>
9 messages
2012/06/25
[#45864] [ruby-trunk - Bug #6647][Open] Exceptions raised in threads should be logged — "headius (Charles Nutter)" <headius@...>
71 messages
2012/06/25
[#45866] [ruby-trunk - Bug #6647] Exceptions raised in threads should be logged
— "rue (Eero Saynatkari)" <redmine@...>
2012/06/25
[#45878] [ruby-trunk - Feature #6649][Open] Add new set_trace_func events "b-call", "b-return" — "ko1 (Koichi Sasada)" <redmine@...>
8 messages
2012/06/26
[#45887] [ruby-trunk - Bug #6650][Open] Fixing win32ole test errors — bosko (Boško Ivanišević) <bosko.ivanisevic@...>
10 messages
2012/06/26
[#45916] [ruby-trunk - Bug #6656][Open] Time#strftime('%Z') should return 'UTC' instead of 'GMT' — "stomar (Marcus Stollsteimer)" <redmine@...>
6 messages
2012/06/27
[#45922] Re: [ruby-trunk - Bug #6656][Open] Time#strftime('%Z') should return 'UTC' instead of 'GMT'
— Tanaka Akira <akr@...>
2012/06/28
2012/6/27 stomar (Marcus Stollsteimer) <[email protected]>:
[#45935] Re: [ruby-trunk - Bug #6656][Open] Time#strftime('%Z') should return 'UTC' instead of 'GMT'
— Marcus Stollsteimer <sto.mar@...>
2012/06/28
Am 28.06.2012 02:29, schrieb Tanaka Akira:
[#45940] Re: [ruby-trunk - Bug #6656][Open] Time#strftime('%Z') should return 'UTC' instead of 'GMT'
— Tanaka Akira <akr@...>
2012/06/28
2012/6/28 Marcus Stollsteimer <[email protected]>:
[#45925] Commit bit in GitHub mirror? — Luis Lavena <luislavena@...>
Hello,
6 messages
2012/06/28
[#45926] Re: Commit bit in GitHub mirror?
— Urabe Shyouhei <shyouhei@...>
2012/06/28
Hello, this is svn -> git gateway admin.
[#45958] [ruby-trunk - Feature #6668][Open] Multiple assignment should not return an Array object — "headius (Charles Nutter)" <headius@...>
7 messages
2012/06/29
[#47584] [ruby-trunk - Feature #6668] Multiple assignment should not return an Array object
— "headius (Charles Nutter)" <headius@...>
2012/09/19
[#45960] [ruby-trunk - Feature #6669][Open] A method like Hash#map but returns hash — "yhara (Yutaka HARA)" <redmine@...>
18 messages
2012/06/29
[#45983] [ruby-trunk - Bug #6675][Open] Raise exception when convert encoding of a character from GBK to UTF — "mghomn (Justin Peal)" <yujianbin@...>
5 messages
2012/06/30
[#46020] [ruby-trunk - Feature #6678][Open] Precedence of ^ operator — "trans (Thomas Sawyer)" <transfire@...>
6 messages
2012/06/30
[#46021] [ruby-trunk - Feature #6679][Open] Default Ruby source file encoding to utf-8 — "claytrump (Clay Trump)" <clay.trump@...>
21 messages
2012/06/30
[#46080] [ruby-trunk - Feature #6679][Assigned] Default Ruby source file encoding to utf-8
— "mame (Yusuke Endoh)" <mame@...>
2012/07/01
[#46653] [ruby-trunk - Feature #6679] Default Ruby source file encoding to utf-8
— "mame (Yusuke Endoh)" <mame@...>
2012/07/23
[ruby-core:45637] [Ruby 1.8 - Backport #3273][Closed] Float string conversion
From:
"marcandre (Marc-Andre Lafortune)" <ruby-core@...>
Date:
2012-06-14 02:30:46 UTC
List:
ruby-core #45637
Issue #3273 has been updated by marcandre (Marc-Andre Lafortune).
Description updated
Status changed from Open to Closed
----------------------------------------
Backport #3273: Float string conversion
https://bugs.ruby-lang.org/issues/3273#change-27234
Author: marcandre (Marc-Andre Lafortune)
Status: Closed
Priority: Normal
Assignee:
Category: core
Target version: Ruby 1.8.8
=begin
For any float f, the two following conditions should hold:
(1) f.to_s.to_f == f (round trips)
(2) f.to_s.chop.to_f != f (minimal)
The second condition is a simplification; if the string representation is in scientific notation, than the character to remove would be the one just before the "e". Also, if the string representation ends with ".0", then it is minimal.
Currently, the first condition fails in Ruby 1.8, and the second fails in Ruby 1.9
$ ruby18dev -ve 'f = 0.21611564636388508; puts f.to_s.to_f == f'
ruby 1.8.8dev (2010-05-11) [i386-darwin10.3.0]
false
$ rubydev -ve 'f = 0.56; puts f.to_s.chop.to_f != f'
ruby 1.9.3dev (2010-05-11 trunk 27730) [x86_64-darwin10.3.0]
false
Note that this implies that Ruby 1.8 and 1.9 do not output the same string representation for either of these two floats.
The conversion algorithm currently checks two precisions. In Ruby 1.9, it tries 16 digits and if that's not enough it then uses 17. In 1.8, it's the same but with 15 and 16.
The fact is that 17 can be necessary (e.g. 0.21611564636388508 is not equal to either 0.2161156463638851 or 0.2161156463638850) and 16 can be too much (e.g. 0.5600000000000001 == 0.56), so three precisions must be checked.
The following patch fixes this issue for trunk (although it can probably be made nicer and/or faster).
Let me know if there are any objections to fixing both the 1.9 and 1.8 lines.
diff --git a/numeric.c b/numeric.c
index f2c8c13..442b069 100644
--- a/numeric.c
+++ b/numeric.c
@@ -569,7 +569,8 @@ flo_to_s(VALUE flt)
else if (isnan(value))
return rb_usascii_str_new2("NaN");
-# define FLOFMT(buf, size, fmt, prec, val) snprintf(buf, size, fmt, prec, val), \
+# define FLOFMT(buf, size, fmt, prec, val) snprintf(buf, size, fmt, prec-1, val), \
+ (void)((atof(buf) == val) || snprintf(buf, size, fmt, (prec), val)), \
(void)((atof(buf) == val) || snprintf(buf, size, fmt, (prec)+1, val))
FLOFMT(buf, sizeof(buf), "%#.*g", float_dig, value); /* ensure to print decimal point */
=end
--
http://bugs.ruby-lang.org/