src/main/cpp/numerics4cpp/iterativemethod.h

00001 /*
00002  * Copyright (c) 2005, DoodleProject
00003  * All rights reserved.
00004  * 
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 
00009  * Redistributions of source code must retain the above copyright
00010  * notice, this list of conditions and the following disclaimer.
00011  * 
00012  * Redistributions in binary form must reproduce the above copyright
00013  * notice, this list of conditions and the following disclaimer in
00014  * the documentation and/or other materials provided with the
00015  * distribution.
00016  * 
00017  * Neither the name of DoodleProject nor the names of its contributors
00018  * may be used to endorse or promote products derived from this
00019  * software without specific prior written permission.
00020  * 
00021  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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00023  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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00035 
00036 #ifndef _NUMERICS4CPP_ITERATIVEMETHOD_H_
00037 #define _NUMERICS4CPP_ITERATIVEMETHOD_H_
00038 
00039 #include "math.h"
00040 #include "exception/exception.h"
00041 
00042 NUM_NAMESPACE_BEGIN
00043 
00048 class iterative_method {
00049         
00050 public:
00057         iterative_method(unsigned int iterations = 100, double relative_error = 1.0e-10) {
00058                 maximum_iterations(iterations);
00059                 maximum_relative_error(relative_error);
00060         }
00061         
00066         unsigned int maximum_iterations() const {
00067                 return _maximum_iterations;
00068         }
00069         
00074         void maximum_iterations(unsigned int iterations) {
00075                 if (iterations == 0) {
00076             throw invalid_argument_exception("Maximum iterations must be positive.");
00077                 }
00078                 _maximum_iterations = iterations;
00079         }
00080         
00085         double maximum_relative_error() const {
00086                 return _maximum_relative_error;
00087         }
00088         
00093         void maximum_relative_error(double relative_error) {
00094         if (relative_error <= 0.0 || is_nan(relative_error)) {
00095                         throw invalid_argument_exception("Maximum relative error must be positive.");
00096                 }
00097                 _maximum_relative_error = relative_error;
00098         }       
00099         
00100 private:
00102     unsigned int _maximum_iterations;
00103 
00105     double _maximum_relative_error;
00106 };
00107 
00108 NUM_NAMESPACE_END
00109 
00110 #endif

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