Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Re^3: if(my) scope

by ikegami (Pope)
on Oct 12, 2009 at 09:20 UTC ( #800639=note: print w/ replies, xml ) Need Help??


in reply to Re^2: if(my) scope
in thread if(my) scope

This is fine:

if (open(my $fh, '<', $qfn)) { ...read from $fh... } # $fh is out of reach here

Perl doesn't care where the my is to the point that it allows the following (even though the behaviour is officially undefined):

my $fh if ...;

Replies are listed 'Best First'.
Re^4: if(my) scope
by oha (Friar) on Oct 12, 2009 at 14:50 UTC
    that's another thing:
    if(my $x = expr) { ... } # my always executed my $x if expr; # my is conditional if(expr) { my $x } # as above
    what i was saying is that if i can my on a arg of a function, maybe i can do the same in the "argument" of a if

    Oha

      "as above" is unclear. I think you meant "my is conditional", but it's really "my always executed" (in the scope in which it resides).
      c() or my $x; # XXX Conditionally executed c() and my $x; # XXX Conditionally executed my $x if c(); # XXX Conditionally executed (same as previous) sub foo { my $x } # OK Always executed if (c()) { my $x } # OK Always executed die; my $x; # OK Always executed

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://800639]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others romping around the Monastery: (7)
As of 2016-06-28 03:19 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My preferred method of making French fries (chips) is in a ...











    Results (349 votes). Check out past polls.