8 # Calls the given block for each element of +self+
9 # and pass the respective element.
13 return to_enum :each unless block
18 if val.kind_of?(Fixnum) && last.kind_of?(Fixnum) # fixnums are special
20 lim += 1 unless exclude_end?
29 if val.kind_of?(String) && last.kind_of?(String) # strings are special
30 if val.respond_to? :upto
31 return val.upto(last, exclude_end?, &block)
37 raise TypeError, "can't iterate" unless val.respond_to? :succ
39 return self if (val <=> last) > 0
41 while (val <=> last) < 0
45 break if val.size > last.size
49 block.call(val) if !exclude_end? && (val <=> last) == 0
53 # redefine #hash 15.3.1.3.15
55 h = first.hash ^ last.hash
56 h += 1 if self.exclude_end?