+ inline int64_t Int64(const Real & r) {return r.ToInt64();}
+ inline Rational<ARBINT> Sqrt(const Rational<ARBINT> & r) {return r.Sqrt();}
+#elif REALTYPE == REAL_MPFRCPP
+ typedef mpfr::mpreal Real;
+ inline double Double(const Real & r) {return r.toDouble();}
+ inline float Float(const Real & r) {return r.toDouble();}
+ inline int64_t Int64(const Real & r) {return r.toLong();}
+ inline Real Sqrt(const Real & r) {return mpfr::sqrt(r, mpfr::mpreal::get_default_rnd());}
+ inline Real Abs(const Real & r) {return mpfr::abs(r, mpfr::mpreal::get_default_rnd());}
+#elif REALTYPE == REAL_IRRAM
+ typedef iRRAM::REAL Real;
+ inline double Double(const Real & r) {return r.as_double(53);}
+ inline float Float(const Real & r) {return r.as_double(53);}
+ inline int64_t Int64(const Real & r) {return (int64_t)r.as_double(53);}
+ inline Real Sqrt(const Real & r) {return iRRAM::sqrt(r);}