Re^3: Definition of numerically equal and rationale for 'you' == 'me'

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Re^4: Definition of numerically equal and rationale for 'you' == 'me' by syphilis (Archbishop) on Mar 02, 2012 at 10:53 UTC
They are both true Where are they both true ? Did you even bother testing it ? Quite frankly, I regard it as an insult that you so quickly assume I'm just another moron. On Windows, perl-5.14.0: `C:\>perl -e "print \"true\" if 'nanosecond'== 'nanosecond'" C:\>perl -e "print \"true\" if 'nanosecond'!= 'nanosecond'" true C:\>perl -e "print \"true\" if 'informal'== 'formal'" C:\>perl -e "print \"true\" if 'informal'!= 'formal'" true C:\>` [download] Should be the same most places. Rob	[reply] [d/l]
Re^5: Definition of numerically equal and rationale for 'you' == 'me' by MidLifeXis (Monsignor) on Mar 02, 2012 at 14:09 UTC
I get exactly the opposite results under 5.8.8 and 5.8.9, hpux, msys, and windows. One such example: `$ perl -e "print \"true\" if 'informal'== 'formal'" true` [download] Update: Under strawberry 5.14.2 MSWin32-x86-multi-thread, the results are different: `$ /c/perl/strawberry/perl/bin/perl -e "print \"true\" if 'informal'!= +'formal'" true $ /c/perl/strawberry/perl/bin/perl -e "print \"true\" if 'informal'== +'formal'"` [download] Update: Ahhhh! Very sneaky :-). <Reveal this spoiler or all in this thread> --MidLifeXis	[reply] [d/l] [select]
Re^6: Definition of numerically equal and rationale for 'you' == 'me' by syphilis (Archbishop) on Mar 02, 2012 at 23:43 UTC
I get exactly the opposite results under 5.8.8 and 5.8.9, hpux, msys, and windows The compiler that was used to build perl affects the behaviour. On Windows, ActivePerl (built using Microsoft Compilers) apparently doesn't display the behaviour, but MinGW-built perls do. And I think there's a fairly recent perl that throws another spanner in the works by asserting (incorrectly) that nan==nan is true. I'm surprised that hpux and msys make a liar out of me with 5.8.9. On my linux box (an old Mandrake-9.1), behaviour is as I asserted with 5.8.9 onwards. Cheers, Rob	[reply]
Re^7: Definition of numerically equal and rationale for 'you' == 'me' by MidLifeXis (Monsignor) on Mar 05, 2012 at 12:17 UTC
Re^5: Definition of numerically equal and rationale for 'you' == 'me' by ikegami (Patriarch) on Mar 03, 2012 at 08:52 UTC
Yes, even though I knew the result, I did test. I even used 5.14.0 on Windows like you. (ActivePerl build 1400, to be specific.) `>perl -e "print \"true\" if 'nanosecond'== 'nanosecond'" true >perl -e "print \"true\" if 'nanosecond'!= 'nanosecond'" >perl -e "print \"true\" if 'informal'== 'formal'" true >perl -e "print \"true\" if 'informal'!= 'formal'" >` [download] `'nanosecond'`, `'informal'` and `'formal'` are all numerically equal to zero, so your build is very buggy.	[reply] [d/l] [select]
Re^6: Definition of numerically equal and rationale for 'you' == 'me' by syphilis (Archbishop) on Mar 07, 2012 at 08:51 UTC
so your build is very buggy Oh, of course ... my pathetic dumbarse build is buggy ... how could I not have realised this !! Now, excuse me while I go puke somewhere .... Rob	[reply]
Re^6: Definition of numerically equal and rationale for 'you' == 'me' by lutok (Scribe) on Mar 05, 2012 at 23:54 UTC
I'm coming in a little late, but this is what I got on Mac Lion, perl-5.14.2: `perl -e "print \"true\" if 'nanosecond'== 'nanosecond'" perl -e "print \"true\" if 'nanosecond'!= 'nanosecond'" true perl -e "print \"true\" if 'informal'== 'formal'" perl -e "print \"true\" if 'informal'!= 'formal'" true` [download] strange Update: Oh I see ... 'nan'...'inf'	[reply] [d/l]
Re^7: Definition of numerically equal and rationale for 'you' == 'me' by ikegami (Patriarch) on Mar 06, 2012 at 08:13 UTC
Re^8: Definition of numerically equal and rationale for 'you' == 'me' by Anonymous Monk on Mar 06, 2012 at 08:21 UTC
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