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Contents
# encoding: utf-8
module Veritas
class Function
class Numeric
# A class representing a subtraction function
class Subtraction < Numeric
include Binary, Comparable
# Return the Subtraction operation
#
# @example
# Subtraction.operation # => :-
#
# @return [Symbol]
#
# @api public
def self.operation
:-
end
# Return the inverse function class
#
# @example
# Subtraction.inverse # => Addition
#
# @return [Class<Addition>]
#
# @api public
def self.inverse
Addition
end
module Methods
extend Aliasable
inheritable_alias(:- => :subtract)
# Return a subtraction function
#
# @example
# subtraction = attribute.subtract(other)
#
# @param [Object] other
#
# @return [Subtraction]
#
# @api public
def subtract(other)
Subtraction.new(self, other)
end
end # module Methods
Attribute::Numeric.class_eval { include Methods }
Numeric.class_eval { include Methods }
end # class Subtraction
end # class Numeric
end # class Function
end # module Veritas
Version data entries
4 entries across 4 versions & 1 rubygems