HaloO,
Luke Palmer wrote:
When do we do integer/rational math and when do we do floating point math?
Since we have now flooring semantics on modulus and division I wonder
how the coercion of nums to ints takes place. Does it also use floor?
E.g. is @array[-0.3] accessing the last element or is it truncating
to zero and indexing from the front?
Another integer issue is how the ++ and -- operators behave. Do they
coerce to int before the operation or do they keep nums as nums?
E.g.
my $x = 3.25;
$x++; # 4.25 or 4?
$x = -2.25;
$x--; # -3.25 or -4 or -3?
How are coercions handled when calling functions?
sub identity ( Int $i ) { return $i }
my Num $x = 3.25;
say indentity($x); # prints 3 or type error? Or even 3.25?
I'm opting for type error on the footing that Int <: Num and
you can't allow a supertype where a subtype is expected.
BTW, are character positions integers or can we have fractional
characters on a higher unicode level that is a sequence of lower
level chars?
Regards, TSa.
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