Bit banging in ruby

Question

I want to create a bit, that will contain security permissions for a given user.

In c#, I would do this by creating an enumeration, and then I would do some bit banging

Answer 1

Bitwse operations are trivial in Ruby.

> 1 | 2 # Create a bitmask from permission 2^0 + 2^1
=> 3

> 3 & 1 == 1 # See if the bitmask contains the 2^0 permission
=> true

> 3 & 4 == 4 # See if the bitmask contains the 2^2 permission
=> false