FractionTraits::CommonFactor

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AdaptableBinaryFunction, finds great common factor of denominators.

This can be considered as a relaxed version of AlgebraicStructureTraits::Gcd, this is needed because it is not guaranteed that FractionTraits::Denominator_type is a model of UniqueFactorizationDomain.

typedef FractionTraits::Denominator_type
	result_type;

typedef FractionTraits::Denominator_type
	first_argument_type;

typedef FractionTraits::Denominator_type
	second_argument_type;

result_type	common_factor ( first_argument_type d1 , second_argument_type d2 )
		return a great common factor of d1 and d2. Note: `operator()(0,0) = 0`