Class: Set

Inherits:
Object
  • Object
show all
Defined in:
lib/graph_matching/core_ext/set.rb

Overview

no-doc

Instance Method Summary collapse

Instance Method Details

#disjoint?(set) ⇒ Boolean

Returns true if the set and the given set have no element in common. This method is the opposite of intersect?. www.ruby-doc.org/stdlib-2.2.0/libdoc/set/rdoc/Set.html#method-i-disjoint-3F

Returns:

  • (Boolean) 


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# File 'lib/graph_matching/core_ext/set.rb', line 31

def disjoint?(set)
  !intersect?(set)
end

#intersect?(set) ⇒ Boolean

Returns true if the set and the given set have at least one element in common. www.ruby-doc.org/stdlib-2.2.0/libdoc/set/rdoc/Set.html#method-i-intersect-3F

Returns:

  • (Boolean) 


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# File 'lib/graph_matching/core_ext/set.rb', line 17

def intersect?(set)
  unless set.is_a?(Set)
    raise ArgumentError, 'value must be a set'
  end
  if size < set.size
    any? { |o| set.include?(o) }
  else
    set.any? { |o| include?(o) }
  end
end