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ConstrainedOptPack_MeritFuncNLE.hpp
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41 
42 #ifndef MERIT_FUNC_NLE_H
43 #define MERIT_FUNC_NLE_H
44 
45 #include <iosfwd>
46 
47 #include "ConstrainedOptPack_Types.hpp"
48 
49 namespace ConstrainedOptPack {
50 
53 class MeritFuncNLE {
54 public:
55 
57  class InvalidInitialization : public std::logic_error
58  {public: InvalidInitialization(const std::string& what_arg) : std::logic_error(what_arg) {}};
59 
61  virtual ~MeritFuncNLE() {}
62 
71  virtual value_type value(const Vector& c) const = 0;
72 
81  virtual value_type deriv() const = 0;
82 
85  virtual void print_merit_func(std::ostream& out
86  , const std::string& leading_str) const = 0;
87 
88 }; // end class MeritFuncNLE
89 
90 } // end namespace ConstrainedOptPack
91 
92 #endif // MERIT_FUNC_NLE_H
Base class for all merit functions for systems of NonLinear Equations (NLE) {abstract}.
virtual void print_merit_func(std::ostream &out, const std::string &leading_str) const =0
Print the merit funciton.
virtual value_type value(const Vector &c) const =0
Return the value of the merit function at c(x). This interface requires the client to compute c(x) an...
virtual value_type deriv() const =0
Return the value of the directional derivative of the merit function w.r.t. alpha at alpha = 0...