From: Calum Shaw-Mackay <calum.shaw-mackay@...>
Date: 2003-04-02T07:03:47+09:00
Subject: Newbie....ish - with questions!

'Lo all

I'm impressed with both Ruby and JRuby - I mainly program in Java so ruby's
OOP is fairly natural

I've got a question regarding some code I've ported...

I have a fixnum which is essentially a bit flag
i.e.
a=1,b=2,c=4,d=8 and so on
I use binary & to work out if a particular flag is set and output a given
message, unfortunatley this leads to lots of puts x if(value & CONST_A) ==
CONST_A
I pass in the messages in an array but the code looks very C-ish - is there
any construct in ruby that will allow me to get around this long winded code
without having a large array of boolean values

I thought something along the line of {pseudo codey}

mesgs = {}
..... # Fill a with mesgs
bitflags.each {|flag| puts mesgs[flag] if flag}

Would this be going along the right lines?

Thanks in advance

Calum