vnl_integrant_fnct.h
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1 #ifndef VNL_INTEGRANT_FNCT_H_
2 #define VNL_INTEGRANT_FNCT_H_
3 //:
4 // \file
5 // \author Kongbin Kang
6 // \date Jan 12, 2005
7 // \brief the abstract class of 1D integrand function used in integral
8 #include "vnl/vnl_export.h"
9 
10 class VNL_EXPORT vnl_integrant_fnct
11 {
12  public:
13  vnl_integrant_fnct() = default;
14  virtual ~vnl_integrant_fnct() = default;
15 
16  virtual double f_(double /*x*/) = 0;
17 };
18 
19 #endif