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Postings from July 2006
Yuval Kogman wrote:
> Jonathan Lang wrote:
> > Apparently, there are _four_ basic kinds of comparison: the ones
> > mentioned above, and == (I believe that eq works enough like == that
> > whatever can be said about one in relation to ===, =:=, or eqv can be
> > said about the other). I'd be quite interested in an expansion of
> > David's example to demonstrate how == differs from the others.
>
> sub &infix:<==> ( Any $x, Any $y ) {
> +$x === +$y; # propagate coercion failure warnings to caller
> }
>
> sub &infix:<eq> ( Any $x, Any $y ) {
> ~$x === ~$y
> }
So the purpose of === is to provide a means of comparison that doesn't
implicitly coerce its arguments to a particular type?
--
Jonathan "Dataweaver" Lang
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