On Fri, Jun 17, 2005 at 03:56:50AM +0800, Autrijus Tang wrote:
:
: my $x = 3;
: my $y = \$x;
: say $y + 10;
: $y++;
: say $y;
: say $x;
:
: Currently in Pugs they print:
:
: 13
: 4
: 3
:
: Is this sane? What is the scalar reference's semantics in face of a
: stringification and numification? I assume that array/hash references
: simply pass on to the things they references to resolve stringify
: and numify, according to S02, but I had not been able to find mentioning
: about scalar refs
I suspect people will find that counterintuitive. A more consistent
approach might produce
13
14
14
That is, if + deferences automatically, so should ++, such that the
"thingie" pointed to by both $x and $y is what gets incremented,
not a clone of it. It should take more work than that to get a COW
reference, I suspect.
Larry
