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author | Sandeep Gupta | 2017-07-05 12:41:25 +0530 |
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committer | Sandeep Gupta | 2017-07-05 12:41:25 +0530 |
commit | dd50e95a8193fb0faa846ccaa971a115ba69e71c (patch) | |
tree | 8d66abedd68dc5255ad323b95a16c9b592657f35 /2.3-1/thirdparty/includes/GSL/gsl/gsl_interp.h | |
parent | 3308ea7a973e2c1e1c8bea99ac7cc783ce8e8b06 (diff) | |
download | Scilab2C-dd50e95a8193fb0faa846ccaa971a115ba69e71c.tar.gz Scilab2C-dd50e95a8193fb0faa846ccaa971a115ba69e71c.tar.bz2 Scilab2C-dd50e95a8193fb0faa846ccaa971a115ba69e71c.zip |
LinearAlgebra and MatrixOperation Update
Diffstat (limited to '2.3-1/thirdparty/includes/GSL/gsl/gsl_interp.h')
-rw-r--r-- | 2.3-1/thirdparty/includes/GSL/gsl/gsl_interp.h | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/2.3-1/thirdparty/includes/GSL/gsl/gsl_interp.h b/2.3-1/thirdparty/includes/GSL/gsl/gsl_interp.h deleted file mode 100644 index 8321224a..00000000 --- a/2.3-1/thirdparty/includes/GSL/gsl/gsl_interp.h +++ /dev/null @@ -1,225 +0,0 @@ -/* interpolation/gsl_interp.h - * - * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2004 Gerard Jungman - * - * 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. - */ - -/* Author: G. Jungman - */ -#ifndef __GSL_INTERP_H__ -#define __GSL_INTERP_H__ -#include <stdlib.h> -#include <gsl/gsl_inline.h> -#include <gsl/gsl_types.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 - -/* evaluation accelerator */ -typedef struct { - size_t cache; /* cache of index */ - size_t miss_count; /* keep statistics */ - size_t hit_count; -} -gsl_interp_accel; - - -/* interpolation object type */ -typedef struct { - const char * name; - unsigned int min_size; - void * (*alloc) (size_t size); - int (*init) (void *, const double xa[], const double ya[], size_t size); - int (*eval) (const void *, const double xa[], const double ya[], size_t size, double x, gsl_interp_accel *, double * y); - int (*eval_deriv) (const void *, const double xa[], const double ya[], size_t size, double x, gsl_interp_accel *, double * y_p); - int (*eval_deriv2) (const void *, const double xa[], const double ya[], size_t size, double x, gsl_interp_accel *, double * y_pp); - int (*eval_integ) (const void *, const double xa[], const double ya[], size_t size, gsl_interp_accel *, double a, double b, double * result); - void (*free) (void *); - -} gsl_interp_type; - - -/* general interpolation object */ -typedef struct { - const gsl_interp_type * type; - double xmin; - double xmax; - size_t size; - void * state; -} gsl_interp; - - -/* available types */ -GSL_VAR const gsl_interp_type * gsl_interp_linear; -GSL_VAR const gsl_interp_type * gsl_interp_polynomial; -GSL_VAR const gsl_interp_type * gsl_interp_cspline; -GSL_VAR const gsl_interp_type * gsl_interp_cspline_periodic; -GSL_VAR const gsl_interp_type * gsl_interp_akima; -GSL_VAR const gsl_interp_type * gsl_interp_akima_periodic; -GSL_VAR const gsl_interp_type * gsl_interp_steffen; - -gsl_interp_accel * -gsl_interp_accel_alloc(void); - -int -gsl_interp_accel_reset (gsl_interp_accel * a); - -void -gsl_interp_accel_free(gsl_interp_accel * a); - -gsl_interp * -gsl_interp_alloc(const gsl_interp_type * T, size_t n); - -int -gsl_interp_init(gsl_interp * obj, const double xa[], const double ya[], size_t size); - -const char * gsl_interp_name(const gsl_interp * interp); -unsigned int gsl_interp_min_size(const gsl_interp * interp); -unsigned int gsl_interp_type_min_size(const gsl_interp_type * T); - - -int -gsl_interp_eval_e(const gsl_interp * obj, - const double xa[], const double ya[], double x, - gsl_interp_accel * a, double * y); - -double -gsl_interp_eval(const gsl_interp * obj, - const double xa[], const double ya[], double x, - gsl_interp_accel * a); - -int -gsl_interp_eval_deriv_e(const gsl_interp * obj, - const double xa[], const double ya[], double x, - gsl_interp_accel * a, - double * d); - -double -gsl_interp_eval_deriv(const gsl_interp * obj, - const double xa[], const double ya[], double x, - gsl_interp_accel * a); - -int -gsl_interp_eval_deriv2_e(const gsl_interp * obj, - const double xa[], const double ya[], double x, - gsl_interp_accel * a, - double * d2); - -double -gsl_interp_eval_deriv2(const gsl_interp * obj, - const double xa[], const double ya[], double x, - gsl_interp_accel * a); - -int -gsl_interp_eval_integ_e(const gsl_interp * obj, - const double xa[], const double ya[], - double a, double b, - gsl_interp_accel * acc, - double * result); - -double -gsl_interp_eval_integ(const gsl_interp * obj, - const double xa[], const double ya[], - double a, double b, - gsl_interp_accel * acc); - -void -gsl_interp_free(gsl_interp * interp); - -INLINE_DECL size_t -gsl_interp_bsearch(const double x_array[], double x, - size_t index_lo, size_t index_hi); - -#ifdef HAVE_INLINE - -/* Perform a binary search of an array of values. - * - * The parameters index_lo and index_hi provide an initial bracket, - * and it is assumed that index_lo < index_hi. The resulting index - * is guaranteed to be strictly less than index_hi and greater than - * or equal to index_lo, so that the implicit bracket [index, index+1] - * always corresponds to a region within the implicit value range of - * the value array. - * - * Note that this means the relationship of 'x' to x_array[index] - * and x_array[index+1] depends on the result region, i.e. the - * behaviour at the boundaries may not correspond to what you - * expect. We have the following complete specification of the - * behaviour. - * Suppose the input is x_array[] = { x0, x1, ..., xN } - * if ( x == x0 ) then index == 0 - * if ( x > x0 && x <= x1 ) then index == 0, and sim. for other interior pts - * if ( x == xN ) then index == N-1 - * if ( x > xN ) then index == N-1 - * if ( x < x0 ) then index == 0 - */ - -INLINE_FUN size_t -gsl_interp_bsearch(const double x_array[], double x, - size_t index_lo, size_t index_hi) -{ - size_t ilo = index_lo; - size_t ihi = index_hi; - while(ihi > ilo + 1) { - size_t i = (ihi + ilo)/2; - if(x_array[i] > x) - ihi = i; - else - ilo = i; - } - - return ilo; -} -#endif - -INLINE_DECL size_t -gsl_interp_accel_find(gsl_interp_accel * a, const double x_array[], size_t size, double x); - -#ifdef HAVE_INLINE -INLINE_FUN size_t -gsl_interp_accel_find(gsl_interp_accel * a, const double xa[], size_t len, double x) -{ - size_t x_index = a->cache; - - if(x < xa[x_index]) { - a->miss_count++; - a->cache = gsl_interp_bsearch(xa, x, 0, x_index); - } - else if(x >= xa[x_index + 1]) { - a->miss_count++; - a->cache = gsl_interp_bsearch(xa, x, x_index, len-1); - } - else { - a->hit_count++; - } - - return a->cache; -} -#endif /* HAVE_INLINE */ - - -__END_DECLS - -#endif /* __GSL_INTERP_H__ */ |