How to declare 8-bit unsigned integer in ruby?

问题

In c++ you can do:

uint8 foo_bar

How would we do the same thing in ruby? Any alternatives?

This post seems close to it maybe someone can explain?

回答1:

Ruby abstracts away the internal storage of integers, so you don't have to worry about it.

If you assign an integer to a variable, Ruby will deal with the internals, allocating memory when needed. Smaller integers are of type Fixnum (stored in a single word), larger integers are of type Bignum.

a = 64
a.class  #=> Fixnum; stored in a single word
a += 1234567890
a.class  #=> Bignum; stored in more than a single word

Ruby is dynamically typed, so you cannot force a variable to contain only unsigned 8-bit integers (just as you cannot force a variable to only contain string values, etc.).

回答2:

You don't declare types in Ruby. The language is dynamically typed.

来源：https://stackoverflow.com/questions/1335710/how-to-declare-8-bit-unsigned-integer-in-ruby