Re: [VOTE][RFC] Scalar Type Hinting with Cast
| From: | Alain Williams | Date: | Sun, 14 Sep 2014 00:07:18 +0000 |
| Subject: | Re: [VOTE][RFC] Scalar Type Hinting with Cast | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-77169@lists.php.net to get a copy of this message | ||
On Sun, Sep 14, 2014 at 12:30:40AM +0100, Andrea Faulds wrote:
> Good evening,
>
> I’ve given up on my plan B, so I’m putting this RFC, finally, to a vote.
>
> I would urge you to vote in favour. It is not going to please everyone, it is after all a
> compromise proposal. However, I have tried my best to strike a balance between complete weak typing
> and strict typing. If this passes, we will finally have userland type specifiers for scalar types.
> It’s not perfect, but I’d argue it’s far better than nothing.
>
> Voting starts today, 2014-09-14, and ends in a week’s time, 2014-09-21.
>
> Thanks!
>
> https://wiki.php.net/rfc/scalar_type_hinting_with_cast#vote
You give an option for float to int casting to truncate.
You give an example of truncating a positive float in that it rounds down
towards 0 - ie 1.5 becomes 1.
What happens with negaitve numbers ? Do you round towards zero or round in a
negative direction ? So, should -1.5 become -1 or -2 ? Or should it depend on
the floating point unit on the machine (not all do the same) ?
Currently PHP (CentOS on an AMD CPU) a cast to int converts -1.5 to -1.
--
Alain Williams
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