Add VFPU::Float (but it is broken)

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

diff --git a/src/real.h b/src/real.h
index 2a4877c..4b2db1c 100644 (file)
--- a/src/real.h
+++ b/src/real.h
@@ -3,20 +3,76 @@
 
 #include "common.h"
 
-namespace IPDF
-{
 
-//#define REAL_SINGLE
-#define REAL_DOUBLE
-//#define REAL_HALF
+#define REAL_SINGLE 0
+#define REAL_DOUBLE 1
+#define REAL_LONG_DOUBLE 2
+#define REAL_VFPU 3
+#define REAL_RATIONAL 4
+#define REAL_RATIONAL_ARBINT 5
+
+#ifndef REAL
+       #error "REAL was not defined!"
+#endif
+
+#if REAL == REAL_VFPU
+       #include "vfpu.h"
+#endif
+
+#if REAL == REAL_RATIONAL
+       #include "rational.h"
+#endif //REAL
 
-#ifdef REAL_SINGLE
+#if REAL == REAL_RATIONAL_ARBINT
+       #include "rational.h"
+       #include "arbint.h"
+       #include "gmpint.h"
+#endif //REAL
+
+namespace IPDF
+{      
+       extern const char * g_real_name[];
+
+#if REAL == REAL_SINGLE
        typedef float Real;
-       inline float Float(Real r) {return r;}
-#elif defined REAL_DOUBLE
+#elif REAL == REAL_DOUBLE
        typedef double Real;
-       inline double Float(Real r) {return r;}
-#endif
+#elif REAL == REAL_LONG_DOUBLE
+       typedef long double Real;
+#elif REAL == REAL_VFPU
+       typedef VFPU::Float Real;
+       inline float Float(const Real & r) {return r.m_value;}
+       inline double Double(const Real & r) {return r.m_value;}
+#elif REAL == REAL_RATIONAL
+       
+       typedef Rational<int64_t> Real;
+       inline float Float(const Real & r) {return (float)r.ToDouble();}
+       inline double Double(const Real & r) {return r.ToDouble();}
+#elif REAL == REAL_RATIONAL_ARBINT
+       #define ARBINT Gmpint // Set to Gmpint or Arbint here
+       
+       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
+
+       // Allow us to call Float on the primative types
+       // Useful so I can template some things that could be either (a more complicated) Real or a primitive type
+       // Mostly in the testers.
+       inline float Float(float f) {return (float)f;}
+       inline float Float(double f) {return (float)f;}
+       inline float Float(long double f) {return (float)(f);}
+       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);}
 }
 
 #endif //_REAL_H