Re: [RFC] Floating Point support in GMP extension
| From: | Park Framework | Date: | Wed, 23 Apr 2014 22:43:32 +0000 |
| Subject: | Re: [RFC] Floating Point support in GMP extension | ||
| References: | 1 2 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-73769@lists.php.net to get a copy of this message | ||
Ok, add precision param to gmp_init.
gmp_init ( mixed $number [, int $base = 0 ], int $precision = 0]] )
$a = gmp_init (3); // type float, by precision = 0
$b = gmp_init (3.333, 10, 3); // float
$c = $a + $b; // float
2014-04-22 0:07 GMT+03:00 Johannes Schlüter <johannes@schlueters.de>:
> On Mon, 2014-04-21 at 23:40 +0300, Park Framework wrote:
> > For backward compatibility in php.ini set default values
> > gmp.default_precision = 0
>
> No. INI setting is *not* backwards compatibility. An ini setting means
> that *everybody* has to care about it and mind it and either check or
> set it.
>
> An alternative is a runtime setting (gmp_set_compatiility(true) ), in
> case the change is really important. I haven't looked further but
> behavior should not depend on ini. We made the mistake and should learn
> not repeat.
>
> johannes
>
>