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##
# Array
#
# ISO 15.2.12
class Array
##
# Calls the given block for each element of +self+
# and pass the respective element.
#
# ISO 15.2.12.5.10
def each(&block)
idx = 0
while(idx < length)
block.call(self[idx])
idx += 1
end
self
end
##
# Calls the given block for each element of +self+
# and pass the index of the respective elment.
#
# ISO 15.2.12.5.11
def each_index(&block)
idx = 0
while(idx < length)
block.call(idx)
idx += 1
end
self
end
##
# Calls the given block for each element of +self+
# and pass the respective element. Each element will
# be replaced by the resulting values.
#
# ISO 15.2.12.5.7
def collect!(&block)
self.each_index{|idx|
self[idx] = block.call(self[idx])
}
self
end
##
# Alias for collect!
#
# ISO 15.2.12.5.20
alias map! collect!
##
# Private method for Array creation.
#
# ISO 15.2.12.5.15
def initialize(size=0, obj=nil, &block)
raise TypeError, "expected Integer for 1st argument" unless size.kind_of? Integer
raise ArgumentError, "negative array size" if size < 0
self.clear
if size > 0
self[size - 1] = nil # allocate
idx = 0
while(idx < size)
self[idx] = (block)? block.call(idx): obj
idx += 1
end
end
self
end
##
# Delete element with index +key+
def delete(key, &block)
while i = self.index(key)
self.delete_at(i)
ret = key
end
if ret == nil && block
block.call
else
ret
end
end
end
##
# Array is enumerable and comparable
module Enumerable; end
module Comparable; end
class Array
# ISO 15.2.12.3
include Enumerable
include Comparable
##
# Sort all elements and replace +self+ with these
# elements.
def sort!(&block)
self.replace(self.sort(&block))
end
end
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