From: me@... Date: 2018-12-23T12:01:15+00:00 Subject: [ruby-core:90683] [Ruby trunk Bug#15453] Ruby 2.5 on Darwin appears to return different result Issue #15453 has been updated by akanet (Vincent Woo). Ah, thank you very much for the explanation Yusuke. I should have examined the documentation more closely. ---------------------------------------- Bug #15453: Ruby 2.5 on Darwin appears to return different result https://bugs.ruby-lang.org/issues/15453#change-75855 * Author: akanet (Vincent Woo) * Status: Rejected * Priority: Normal * Assignee: * Target version: * ruby -v: * Backport: 2.4: UNKNOWN, 2.5: UNKNOWN ---------------------------------------- Hi everyone, I'm not sure if this is the right place to report, but I hit a shocking result recently. I was developing on my OSX machine on ruby 2.5.1 and also on a linux x64 machine and noticed I was getting different results for a totally deterministic ruby script (attached). On Darwin: ~~~ Vincents-MBP:~ vwoo$ ruby --version ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17] Vincents-MBP:~ vwoo$ ruby test.rb .=.|=.|.|=.|=|=. .|=|=|||..|.=... .==|....||=..|== =.|....|.==.|==. =|..==...=.|==.. =||.=.=||=|=..|= |.=.===|||..=..| |..==||=.|==|=== .=..===..=|.|||. .======|||=|=.|= .===|=|===.===|| =|||...|==..|=.| =.=|=.=..=.||==| ||=|=...|==.=|== |=.=||===.|||=== ||.|==.|.|.||=|| 1445 [[10, 10, :torch], 49, 0] ~~~ On Linux: ~~~ vwoo@ubuntu:~$ ruby --version ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux-gnu] vwoo@ubuntu:~$ ruby test.rb .=.|=.|.|=.|=|=. .|=|=|||..|.=... .==|....||=..|== =.|....|.==.|==. =|..==...=.|==.. =||.=.=||=|=..|= |.=.===|||..=..| |..==||=.|==|=== .=..===..=|.|||. .======|||=|=.|= .===|=|===.===|| =|||...|==..|=.| =.=|=.=..=.||==| ||=|=...|==.=|== |=.=||===.|||=== ||.|==.|.|.||=|| 1032 [[10, 10, :torch], 45, 0] ~~~ I believe the Linux result to be correct (and I have validated it against other Linux machines). This appears to happen on 2.5.3 as well. I built Darwin ruby with ruby-install and Apple clang 10. Any help debugging would be very appreciated! ---Files-------------------------------- test.rb (1.97 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: