Am 18.01.2012 11:53, schrieb David Arroyo:
use v6;
This is obligatory in perl 6? What does the module do?
'use v6;' is the declaration that the following program is written in
Perl 6. It has the advantage that if you accidentally run the file with
a perl 5 compiler, it will give you a much better error message.
Once Perl 6 has been released in several version, you'll be able to tell
exactly which Perl 6 version you want to use.
S01 also says that if if a compiler understands both Perl 5 and Perl 6,
the default mode is v5, so you'll need to explicitly write 'use v6;' to
enable Perl 6 semantics.
So in most cases today it's not strictly necessary to write 'use v6;',
but it's usually a good idea to write it nonetheless.
Cheers,
Moritz
