Re: [PHP-DEV] Re: [RFC] [DISCUSSION] More precise float value

Hi Yasuo,

----- Original Message -----
From: "Yasuo Ohgaki"
Sent: Friday, September 18, 2015

> Hi all,
>
> On Fri, Sep 4, 2015 at 9:41 AM, Yasuo Ohgaki <yohgaki@ohgaki.net> wrote:
>> IEEE 754 double cannot express exact float values. That said,
>> float values expressed by json/serialize/var_export/echo/print
>> are not precise enough in many cases.
>>
>> Issues:
>> - json_encode() uses EG(precision)=14 that truncates float values.
>> echo()/print()
>> does this as well.
>> - large EG(precision)/PG(serialize_precision) prints meaningless values.
>>
>> This RFC proposes zend_dtoa()'s 0 mode support which rounds float value
>> to nearest value.
>>
>> https://wiki.php.net/rfc/precise_float_value
>> https://github.com/php/php-src/pull/1455
>>
>> This change is simple enough for PHP 7.0. IMO.
>> Comments/suggestions are appreciated!
>
> It's been 2 weeks and no comment for this.
> I'll start voting.

Cool, but there's no voting available...? :-)

> Thanks.
>
> --
> Yasuo Ohgaki
> yohgaki@ohgaki.net

- Matt


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