Class: ORTools::SumArray

Inherits:
LinearExpr show all
Defined in:
lib/or_tools/sum_array.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from LinearExpr

#*, #+, #-, #-@, #/, #<=, #==, #>=, #coeffs, #coerce, #inspect, #solution_value

Constructor Details

#initialize(array) ⇒ SumArray

Returns a new instance of SumArray.



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# File 'lib/or_tools/sum_array.rb', line 5

def initialize(array)
  @array = array.map { |v| cast_to_lin_exp(v) }
end

Instance Attribute Details

#array ⇒ Object (readonly)

Returns the value of attribute array.



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# File 'lib/or_tools/sum_array.rb', line 3

def array
  @array
end

Instance Method Details

#add_self_to_coeff_map_or_stack(coeffs, multiplier, stack) ⇒ Object 



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# File 'lib/or_tools/sum_array.rb', line 9

def add_self_to_coeff_map_or_stack(coeffs, multiplier, stack)
  @array.reverse.each do |arg|
    stack << [multiplier, arg]
  end
end

#cast_to_lin_exp(v) ⇒ Object 



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# File 'lib/or_tools/sum_array.rb', line 15

def cast_to_lin_exp(v)
  v.is_a?(Numeric) ? Constant.new(v) : v
end

#to_s ⇒ Object 



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# File 'lib/or_tools/sum_array.rb', line 19

def to_s
  "#{@array.map(&:to_s).reject { |v| v == "0" }.join(" + ")}".gsub(" + -", " - ")
end