From: ara.t.howard@...
Date: 2005-12-17T05:17:49+09:00
Subject: Re: Math::PI?

On Sat, 17 Dec 2005, [ISO-8859-1] Daniel Sch�le wrote:

> [..]
>
>> harp:~ > irb
>> irb(main):001:0> Math::constants.grep /pi/i
>> => ["PI"]
>> irb(main):002:0> Math::PI
>> => 3.14159265358979
>> 
>> hth
>
> yes, it helps
> I am not sure whether I tried Math::PI or Math.PI
> also I use Ruby on windows and linux
> as I wrote my prevous post I used Ruby on windows
>
> but it brings up an interessting point
>
> module A
> a=1
> @b=2
> @@c=3
> $d=4
> def e;5;end
> def A.f;6;end
> end
>
> A::f is the same as A.f
> $d is immediatly accessable
> A::e, A.e accessable after include A
>
> what is about a,b and c?
> How can I put a constant in the module?

   module M
     A = 42
   end

   module N
     include M
     B = 42
   end

   class K
     include A
     include B
     C = 42
   end

   p M::A

   p N::A
   p N::B

   p K::A
   p K::B
   p K::C

cheers.

-a
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