& - FixNum - method doubt

[jazzez ravi]

Hi All,

irb> a=12
irb> a.methods

it contains & method

So I tried like ..
irb> 3&6
=> 2
irb> 3&7
=> 3
irb> 7&21
=> 5

I can't understand how it works. Anyone help me


Thanks,
P.Raveendran
http://raveendran.wordpress.com

 

[Randall Alexander]

[Note: parts of this message were removed to make it a legal post.]

I am just learning Ruby but it looks like the binary intersection of the
true bits. In shorter terms a binary "and" command.
3&6=2
in binary
011&110=010

3&7=3
in binary
011&111=011

7&21=5
in binary
00111&10101=00101

Randy

Hi All,

irb> a=12
irb> a.methods

it contains & method

So I tried like ..
irb> 3&6
=> 2
irb> 3&7
=> 3
irb> 7&21
=> 5

I can't understand how it works. Anyone help me


Thanks,
P.Raveendran
http://raveendran.wordpress.com

--
Randy
http://randallalexander-os.blogspot.com/
http://randallalexander-java.blogspot.com/
http://randallalexander-flex.blogspot.com/
http://randallalexander-ruby.blogspot.com/

 

[jazzez ravi]

I am just learning Ruby but it looks like the binary intersection of the
true bits. In shorter terms a binary "and" command.
3&6=2
in binary
011&110=010

3&7=3
in binary
011&111=011

7&21=5
in binary
00111&10101=00101

Randy

Hi Randy,

Thank you very much for your quick reply.

Also i need help about these methods

+@
-@
=~

Thanks in Advance,
Thanks,
P.Raveendran
http://raveendran.wordpress.com

 

[jazzez ravi]

Hi Randy,

And few more ..

+@
-@
=~[]
^
__id__
__send__

Waiting for your reply



Thanks in Advance,
Thanks,
P.Raveendran
http://raveendran.wordpress.com

 

[Leo]

And few more ..

http://www.ruby-doc.org/core-1.9/classes/
http://www.ruby-doc.org/core-1.9/classes/Fixnum.html

 

[jazzez ravi]

http://www.ruby-doc.org/core-1.9/classes/
http://www.ruby-doc.org/core-1.9/classes/Fixnum.html

Hi Leo,

Thanks for your reply.

I am using Ruby 1.86 so http://www.ruby-doc.org/core/ will help me.


Regards,
P.Raveendran
http://raveendran.wordpress.com

 

[jazzez ravi]

http://www.ruby-doc.org/core-1.9/classes/
http://www.ruby-doc.org/core-1.9/classes/Fixnum.html

Hi Leo,

http://www.ruby-doc.org/core-1.9/classes/Fixnum.html also I couldn't
find the methods like,

__id__
__send__
denominator

etc..,

Please help to me once again..


Regards,
P.Raveendran
http://raveendran.wordpress.com

 

[Christopher Dicely]

Hi Leo,

http://www.ruby-doc.org/core-1.9/classes/Fixnum.html also I couldn't
find the methods like,

__id__
__send__
denominator

Methods that appear for instances of a particular class may be defined
in ancestors of that class (or included modules, either of the class
or its ancestors), rather than than in the class itself. In this case
__id__ and __send__ are Kernel methods (probably documented under
Object, rather than Kernel) and denominator is, I think, defined in
Numeric.

 

[jazzez ravi]

Methods that appear for instances of a particular class may be defined
in ancestors of that class (or included modules, either of the class
or its ancestors), rather than than in the class itself. In this case
__id__ and __send__ are Kernel methods (probably documented under
Object, rather than Kernel) and denominator is, I think, defined in
Numeric.

Hi christopher,

Yes. Finally I got exact solution.Thanks for your help.

Regards,
P.Raveendran
http://raveendran.wordpress.com

 

[jazzez ravi]

Hi All,

I spent more time to find the solution for all methods. So I created one
document which contains all the methods for that particular class.

Now it is available here

Fixnum:

http://raveendran.wordpress.com/2009/03/25/ruby-fixnum-documentation/

String:

http://raveendran.wordpress.com/2009/03/25/ruby-fixnum-documentation/


Regards,
P.Raveendran
http://raveendran.wordpress.com

 

[jazzez ravi]

Hi all,


one small change

String :

http://raveendran.wordpress.com/2009/03/30/ruby-string-documentation/


Regards,
P.Raveendran
http://raveendran.wordpress.com