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Date: Mon, 29 Aug 2016 16:09:00 +0200
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Subject: Re: [PHP-DEV] Allow infinity integer length
From: bjorn.x.larsson@telia.com (=?UTF-8?Q?Bj=c3=b6rn_Larsson?=)

There was / is a proposal about bigints, see:

https://wiki.php.net/rfc/bigint

Regards //Björn Larsson


Den 2016-08-29 kl. 15:48, skrev David Rodrigues:
> Currently PHP integer is limited to 2147483647 or 9223372036854775807
> (PHP_INT_MAX), depending of system bits. We can works with long
> integers by using bcmath, for instance. But why not to support it
> natively?
>
> I mean, PHP can parse infinity integers, but it's converted to
> cientific notation or to INF.
>
> My suggestion is that, instead of convert it, stores the value in
> another format, an int[] or string, expanding depending of parsed
> length.
>
> Then accept things like:
>
> 10000000000000000000000000000000 + 10000000000000000000000000000000 =
> 20000000000000000000000000000000
>
> Yeah, I know that it should be slower than normal ints, but is an
> exceptional case. It should avoid problems caused by untested code
> with very large numbers, for instance.
>
> Same for float values, but in this case I think that should have a
> best implementation to defines length of mantissa, for instance (new
> Float($float, $bits), for instance). But it can be part of another
> discussion.
>