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Postings from August 2009
Daniel Ruoso wrote: >In Perl 5 that stores a Scalar value of 1 in the glob "a" of the current >lexpad. > >In Perl 6, on the other hand, that stores a Scalar object in the entry >"$a" of the lexpad and stores the Integer 1 inside it's "cell". Actually Perl 5 does have a distinction of this nature. A p5 scalar can be read-only, and the scalar slot in a glob can be made to point at a read-only scalar. Like this: $ perl -lwe '*x = \1; print $x; $x = 2; print $x' 1 Modification of a read-only value attempted at -e line 1. Contrast with the writable equivalent: $ perl -lwe '*x = \(my$y=1); print $x; $x = 2; print $x' 1 2 I would expect to be able to do either of these with the := operator, with some form of $x on the LHS. -zeframThread Previous | Thread Next