Re: [PHP-DEV] [VOTE][RFC] Scalar Type Hinting with Cast

Stas Malyshev wrote (on 15/09/2014):
> Hi!
>
>> I agree that 100% is an unrealistic goal, but I don't think I've yet
>> seen someone actually point at a documented set of rules that even 80%
>> of current functions follow. I guess there is a default/normal usage of
> The rules are in zpp, and every function that uses zpp automatically
> follows them.
>

For those of us that aren't fluent in C, it would be great if someone 
could document those rules, or point at a readable piece of code which 
is specifically relevant to this discussion.

As I understand it, it's also not quite true to say that everything 
automatically follows them, since functions can a) react how they want 
to a "failure" of ZPP, and b) perform any extra checks and conversions 
they want in addition to ZPP. From an engine perspective, the rules of 
ZPP itself may seem like a single unit, but from a userland PoV, the 
function's overall behaviour that is a "black box".

Please correct me if I've misunderstood that.

Regards,
-- 
Rowan Collins
[IMSoP]