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

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.

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Alain Williams
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