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Postings from July 2006
On Thu, Jul 13, 2006 at 21:55:15 -0700, 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
}
--
Yuval Kogman <nothingmuch@woobling.org>
http://nothingmuch.woobling.org 0xEBD27418
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