Contents

module Basic101

  class SgnFunction < Function

    def name
      'SGN'
    end

    def call(runtime, args)
      check_args args, [BasicNumeric]
      value = args.first.eval(runtime)
      value.sgn
    end

  end

end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
basic101-0.4.0	lib/basic101/sgn_function.rb
basic101-0.2.0	lib/basic101/sgn_function.rb
basic101-0.1.0	lib/basic101/sgn_function.rb