The abstract class for integers, which has two subclasses
Fixnum and
Bignum. In Ruby,
both kinds of integers are mixable, and converted
automatically according to the value. Integers can be
treated as infinite bit strings for bit operations.
Numeric
self[nth]
Returns 1 if nth bit of the integer set, otherwise 0.
chr
Returns the string contains a character represented by that number in
the character set. For example, 65.chr returns the
string "A".
The number must be within 0 to 255.
integer?
Returns TRUE.
size
Returns the approximate size of the integer in byte.
succ
Returns the ``next'' value of the integer.