Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re^6: Definition of numerically equal and rationale for 'you' == 'me'

by lutok (Scribe)
on Mar 05, 2012 at 23:54 UTC ( #957997=note: print w/ replies, xml ) Need Help??


in reply to Re^5: Definition of numerically equal and rationale for 'you' == 'me'
in thread Definition of numerically equal and rationale for 'you' == 'me'

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

strange

Update: Oh I see ... 'nan'...'inf'


Comment on Re^6: Definition of numerically equal and rationale for 'you' == 'me'
Download Code
Replies are listed 'Best First'.
Re^7: Definition of numerically equal and rationale for 'you' == 'me'
by ikegami (Pope) on Mar 06, 2012 at 08:13 UTC

    Could you give me the output of the following, please?

    perl -le'print "foo" == 0 ? "as per docs" : "deviates from docs"'

    perldata:

    strings that aren't numbers count as 0, just as they do in awk

      You missed the update :)

      $ perl -le " print int $_ for qw/ na nan nanners in inf infant /" 0 -1.#IND -1.#IND 0 1.#INF 1.#INF

      perlop mentions NaN, while bigint...

        Saw the update later. I get it, thanks :)

        I didn't miss it, I misunderstood it. I thought you meant it was returning NaN for all strings, not just those starting with "nan".

        That's rather weird, but it is consistent with "123abc".

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://957997]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (5)
As of 2015-07-28 01:36 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (251 votes), past polls