Re^2: Perl6::Rules Rules

The $num = $num + 0; ensures the returned result will be treated as a number if used in an ambiguous context, such as with a bitwise operator. So yes, if the is_* functions are documented to return a number it's helpful to do this.

Would that he were using a real Perl6, he could just use unary + on the return to force numeric context:

return +$num;
[download]

This would remove the extra, potentially confusing addition which IMHO is a good thing. /me waits for Perl6 with bated breath.

duff

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Re^3: Perl6::Rules Rules by Aristotle (Chancellor) on Aug 04, 2004 at 18:33 UTC
And in Perl5, of course, you just write `return 0 + $num;` [download] `:-)` Makeshifts last the longest.	[reply] [d/l]