Remove terrible "pow()" functions

[ipdf/code.git] / src / real.h

diff --git a/src/real.h b/src/real.h
index 4b2db1c..d8033fc 100644 (file)
--- a/src/real.h
+++ b/src/real.h
@@ -54,12 +54,7 @@ namespace IPDF
        typedef Rational<ARBINT> Real;
        inline float Float(const Real & r) {return (float)r.ToDouble();}
        inline double Double(const Real & r) {return r.ToDouble();}
-       inline Rational<ARBINT> pow(const Rational<ARBINT> & a, const Rational<ARBINT> & b)
-       {
-               ARBINT P(std::pow(static_cast<double>(a.P), b.ToDouble()));
-               ARBINT Q(std::pow(static_cast<double>(a.Q), b.ToDouble()));
-               return Rational<ARBINT>(P,Q);
-       }
+
 #else
        #error "Type of Real unspecified."
 #endif //REAL
@@ -73,6 +68,19 @@ namespace IPDF
        inline double Double(float f) {return (double)f;}
        inline double Double(double f) {return (double)f;}
        inline double Double(long double f) {return (double)(f);}
+       
+       inline Real Power(const Real & a, int n)
+       {
+               if (n < 0)
+               {
+                       return Power(Real(1)/a, -n);
+               }
+               Real r(1);
+               for (int i = 0; i < n; ++i)
+                       r *= a;
+               return r;
+       }
+       
 }
 
 #endif //_REAL_H