/* * Project:  LevenbergMarquardtLeastSquaresFitting * * File:     lm_eval.h  * * Contents: Default declarations of  *           - user-defined data transfer structure, *           - user-defined data evalution function, *           - user-defined printout routine. *           Default implementation is in lm_eval.c. *           Usage is shown in lm_test.c. * * Author:   Joachim Wuttke 2004-8  *  * Homepage: www.messen-und-deuten.de/lmfit * * Licence:  Public domain. */ #ifndef LM_EVAL_H#define LM_EVAL_H#ifdef __cplusplusextern "C" {#endiftypedef struct {    /* may be modified to hold arbitrary data */    double *user_t;    double *user_y;    double (*user_func) (double user_t_point, double *par);} lm_data_type;void lm_evaluate_default(double *par, int m_dat, double *fvec,			 void *data, int *info);void lm_print_default(int n_par, double *par, int m_dat, double *fvec,		      void *data, int iflag, int iter, int nfev);#ifdef __cplusplus}#endif		      #endif /* LM_EVAL_H */