Re: Re: Fix division by zero to throw exception
| From: | Levi Morrison | Date: | Fri, 03 Apr 2015 19:31:39 +0000 |
| Subject: | Re: Re: Fix division by zero to throw exception | ||
| References: | 1 2 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-85719@lists.php.net to get a copy of this message | ||
On Fri, Apr 3, 2015 at 1:10 PM, Andrea Faulds <ajf@ajf.me> wrote:
> Hi Dmitry,
>
>> On 3 Apr 2015, at 20:04, Dmitry Stogov <dmitry@zend.com> wrote:
>>
>> 2) Very similar weird behavior was introduced for shift with negative offsets. I also
>> propose to change it in the same way (Fatal error at compile-time, Exception in run-time).
>>
>> Any thoughts? objections?
>
> For consistency with IEEE 754, shouldn't we produce INF on a division by zero, at least
> for floats (but probably integers too because of weak typing)? I don't think producing a
> warning is an issue, but FALSE isn't the right value to produce.
I agree with Andrea. Currently we do floating point division even if
both arguments are integers, and the correct behavior for a floating
point divide by zero is to produce an INF or -INF.