Converting TEvtGen to native cmake

[u/mrichter/AliRoot.git] / TEvtGen / EvtGen / EvtGenModels / EvtItgAbsFunction.hh

diff --git a/TEvtGen/EvtGen/EvtGenModels/EvtItgAbsFunction.hh b/TEvtGen/EvtGen/EvtGenModels/EvtItgAbsFunction.hh
new file mode 100644 (file)
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+++ b/TEvtGen/EvtGen/EvtGenModels/EvtItgAbsFunction.hh
@@ -0,0 +1,72 @@
+//--------------------------------------------------------------------------
+//
+//
+// Copyright Information: See EvtGen/COPYRIGHT
+//
+// Environment:
+//      This software is part of the EvtGen package developed jointly
+//      for the BaBar and CLEO collaborations.  If you use all or part
+//      of it, please give an appropriate acknowledgement.
+//
+// Module: EvtItgAbsFunction.hh
+//
+// Description:
+//      Abstraction of a generic function for use in integration methods elsewhere
+//      in this package. (Stolen and modified from the BaBar IntegrationUtils package 
+//      - author: Phil Strother).
+//
+// Modification history:
+//
+//    Jane Tinslay                March 21, 2001       Module adapted for use in 
+//                                                     EvtGen
+//
+//------------------------------------------------------------------------
+
+#ifndef EVTITGABSFUNCTION_HH
+#define EVTITGABSFUNCTION_HH
+
+//-------------
+// C Headers --
+//-------------
+extern "C" {
+}
+
+class EvtItgAbsFunction {
+
+public:
+
+  // Constructors
+
+  EvtItgAbsFunction(double lowerRange, double upperRange);
+
+  // Destructor
+  virtual ~EvtItgAbsFunction( );
+
+  virtual double value( double x) const;
+
+  virtual double operator()(double x) const;
+  
+  // Selectors (const)
+  
+  inline double upperRange() const {return _upperRange;}
+  inline double lowerRange() const {return _lowerRange;}
+  inline void   getRange(double &lower,double &upper) const { lower = _lowerRange; upper = _upperRange; } 
+  virtual void setCoeff(int, int, double)=0;
+  virtual double getCoeff(int, int)=0;
+  
+protected:
+  
+  virtual double myFunction(double x) const=0;
+  void    setRange(double x1,double x2) { _lowerRange=x1; _upperRange=x2; };
+
+private:
+  
+  double _upperRange;
+  double _lowerRange;
+ 
+  EvtItgAbsFunction( const EvtItgAbsFunction& );                // Copy Constructor
+  EvtItgAbsFunction& operator= ( const EvtItgAbsFunction& );    // Assignment op
+
+};
+
+#endif // EVTITGABSFUNCTION_HH