Perl - strings vs ints

[dangerstat]

Hi,

A quick question about Perl. Say I have the following script:
$a = 2;
$b = 3;
$name = "Fred Blogs\n";
print "Floppy!";
print $name;
print "Floppy2!";
$c = $a+$b;

Now using the debugger I can see that as soon as $a and $b are initialized I can see their values so if I break at line 2 and do
>p $a
==2
I can see that $a has value 2. But if I break at line 4 I can't see anything in $name
>p $name
==
But once $name is used on line 5 I can then see it :/

Is this some sort of dynamic variable scoping so checking at the method what the object is?

 

[JIM_BOB7813]

I just ran that through eclipse and it shows $name getting assigned at line 3, and can print it. Also tried in ddd and it produces the same result.

What debugger are you using?

 

[dangerstat]

I just ran that through eclipse and it shows $name getting assigned at line 3, and can print it. Also tried in ddd and it produces the same result.

What debugger are you using?

Perl has an inbuilt debugger

perl -d

It's the one I'm using

 

[JIM_BOB7813]

I just tried it and it will only print variables once you have moved over the assignment line.
E.g. As soon as it starts up, you can't print $a, you have to go to next line, then print $a.

It seems the inbuilt debugger appears to run a line behind, since it shows you the next line before it executes it?

 

[dangerstat]

I just tried it and it will only print variables once you have moved over the assignment line.
E.g. As soon as it starts up, you can't print $a, you have to go to next line, then print $a.

It seems the inbuilt debugger appears to run a line behind, since it shows you the next line before it executes it?

Pretty much, well basically it was my fault using n (next) rather than getting it to run between break points using c (continue) :/