/* interpolation/gsl_spline.h * * Copyright (C) 2001, 2007 Brian Gough * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or (at * your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __GSL_SPLINE_H__ #define __GSL_SPLINE_H__ #if !defined( GSL_FUN ) # if !defined( GSL_DLL ) # define GSL_FUN extern # elif defined( BUILD_GSL_DLL ) # define GSL_FUN extern __declspec(dllexport) # else # define GSL_FUN extern __declspec(dllimport) # endif #endif #include <stdlib.h> #include <gsl/gsl_interp.h> #undef __BEGIN_DECLS #undef __END_DECLS #ifdef __cplusplus # define __BEGIN_DECLS extern "C" { # define __END_DECLS } #else # define __BEGIN_DECLS /* empty */ # define __END_DECLS /* empty */ #endif __BEGIN_DECLS /* general interpolation object */ typedef struct { gsl_interp * interp; double * x; double * y; size_t size; } gsl_spline; GSL_FUN gsl_spline * gsl_spline_alloc(const gsl_interp_type * T, size_t size); GSL_FUN int gsl_spline_init(gsl_spline * spline, const double xa[], const double ya[], size_t size); GSL_FUN const char * gsl_spline_name(const gsl_spline * spline); GSL_FUN unsigned int gsl_spline_min_size(const gsl_spline * spline); GSL_FUN int gsl_spline_eval_e(const gsl_spline * spline, double x, gsl_interp_accel * a, double * y); GSL_FUN double gsl_spline_eval(const gsl_spline * spline, double x, gsl_interp_accel * a); GSL_FUN int gsl_spline_eval_deriv_e(const gsl_spline * spline, double x, gsl_interp_accel * a, double * y); GSL_FUN double gsl_spline_eval_deriv(const gsl_spline * spline, double x, gsl_interp_accel * a); GSL_FUN int gsl_spline_eval_deriv2_e(const gsl_spline * spline, double x, gsl_interp_accel * a, double * y); GSL_FUN double gsl_spline_eval_deriv2(const gsl_spline * spline, double x, gsl_interp_accel * a); GSL_FUN int gsl_spline_eval_integ_e(const gsl_spline * spline, double a, double b, gsl_interp_accel * acc, double * y); GSL_FUN double gsl_spline_eval_integ(const gsl_spline * spline, double a, double b, gsl_interp_accel * acc); GSL_FUN void gsl_spline_free(gsl_spline * spline); __END_DECLS #endif /* __GSL_INTERP_H__ */