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##
# Range
#
# ISO 15.2.14
class Range
##
# Calls the given block for each element of +self+
# and pass the respective element.
#
# ISO 15.2.14.4.4
def each(&block)
val = self.first
unless val.respond_to? :succ
raise TypeError, "can't iterate"
end
last = self.last
return self if (val <=> last) > 0
while((val <=> last) < 0)
block.call(val)
val = val.succ
end
if not exclude_end? and (val <=> last) == 0
block.call(val)
end
self
end
# redefine #hash 15.3.1.3.15
def hash
h = first.hash ^ last.hash
if self.exclude_end?
h += 1
end
h
end
end
##
# Range is enumerable
#
# ISO 15.2.14.3
class Range
include Enumerable
end
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