Smalltalk › Pharo › Pharo Smalltalk Developers

Another stupid question

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

3 messages Options

Benjamin Van Ryseghem (Pharo)

Another stupid question

Hi guys, I know it sounds stupid but how do I convert numbers from one base to another ?

I found

3 printStringBase: 2 -> '11'

But I would like something like

11 convertFromBase: 2 to: 10

-> 3

The Finder did help me about this one so I ask here :)

Thanks in advance,

Ben

jannik laval

Re: Another stupid question

Hi Ben,

use that:

2r11 printStringBase: 10

-> 3

16r11 printStringBase: 10

->17

Cheers,

Jannik

On Feb 14, 2013, at 10:05 PM, Benjamin <[hidden email]> wrote:

Hi guys, I know it sounds stupid but how do I convert numbers from one base to another ?

I found

3 printStringBase: 2 -> '11'

But I would like something like

11 convertFromBase: 2 to: 10
-> 3

The Finder did help me about this one so I ask here :)

Thanks in advance,

Ben

Sven Van Caekenberghe-2

Re: Another stupid question

In reply to this post by Benjamin Van Ryseghem (Pharo)

On 14 Feb 2013, at 22:05, Benjamin <[hidden email]> wrote:

> Hi guys, I know it sounds stupid but how do I convert numbers from one base to another ?
>
> I found
>
> 3 printStringBase: 2 -> '11'
>
> But I would like something like
>
> 11 convertFromBase: 2 to: 10
> -> 3
>
> The Finder did help me about this one so I ask here :)
>
> Thanks in advance,
>
> Ben

It is not the number itself that is in some base, but its representation.
So you have to convert from one string representation to another.

So something like this should work:

(Integer readFrom: 'FF' base: 16) printStringBase: 2

Sven

--
Sven Van Caekenberghe
http://stfx.eu
Smalltalk is the Red Pill