Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight

Re: Test::More not working with Perl local special variables

by AnomalousMonk (Chancellor)
on Apr 22, 2013 at 19:26 UTC ( #1029959=note: print w/replies, xml ) Need Help??

in reply to Test::More not working with Perl local special variables

It's a dynamic scoping issue:

>perl -wMstrict -le "my $s = 'foobar'; printf qq{\$& in sub: '%s' \n}, S($s); print qq{\$& post sub: '$&'}; print '$& undefined' unless defined $&; ;; sub S { $_[0] =~ m{ oob }xms; return $&; } " $& in sub: 'oob' Use of uninitialized value $& in concatenation (.) or string at ... $& post sub: '' $& undefined

See the section Variables related to regular expressions in perlvar: "These variables are read-only and dynamically-scoped, unless we note otherwise."

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1029959]
[Discipulus]: water on moon? they can finally produce beer!
[Corion]: Discipulus++ # focus on the important things

How do I use this? | Other CB clients
Other Users?
Others perusing the Monastery: (12)
As of 2017-07-25 09:09 GMT
Find Nodes?
    Voting Booth?
    I came, I saw, I ...

    Results (366 votes). Check out past polls.