Re^3: Code from perlboot not working as expected

$class is a reference to the object and I believe that's what you get when you print out a reference. Just dereference it (note the double $): print "a $$class goes ", $class->sound, "!\n"; Kevin Sigl

Comment on Re^3: Code from perlboot not working as expected

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Re^4: Code from perlboot not working as expected by kennethk (Abbot) on May 17, 2010 at 15:00 UTC
Dereferencing will get you the value contained in the scalar reference, but the spec expects the package name. The code `print "a $$class goes ", $class->sound, "!\n";` will yield the output `a Mr. Ed goes neigh!` not the expected `a Horse goes neigh!` It will also fail outright if the code is invoked statically, with the error under strict: `Can't use string ("Horse") as a SCALAR ref while "strict refs" in use`	[reply] [d/l] [select]

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Re^4: Code from perlboot not working as expected
by kennethk (Abbot) on May 17, 2010 at 15:00 UTC

print "a $$class goes ", $class->sound, "!\n";

will yield the output

a Mr. Ed goes neigh!

not the expected

a Horse goes neigh!

It will also fail outright if the code is invoked statically, with the error under strict:

Can't use string ("Horse") as a SCALAR ref while "strict refs" in use

[reply]
[d/l]
[select]