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The class Rational_traits<NT> can be used to determine the type of the numerator and denominator of a rational number type as Quotient, Gmpq, mpq_class or leda_rational.
#include <CGAL/Number_type_traits.h>
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the type of the numerator and denominator.
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| returns the numerator of r. | ||
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| returns the denominator of r. | ||
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| constructs a rational number. | ||