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/* integration/workspace.c
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*
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* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007, 2009 Brian Gough
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <gsl/gsl_integration.h>
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#include <gsl/gsl_errno.h>
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gsl_integration_workspace *
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gsl_integration_workspace_alloc (const size_t n)
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{
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gsl_integration_workspace * w ;
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if (n == 0)
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{
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GSL_ERROR_VAL ("workspace length n must be positive integer",
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GSL_EDOM, 0);
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}
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w = (gsl_integration_workspace *)
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malloc (sizeof (gsl_integration_workspace));
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if (w == 0)
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{
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GSL_ERROR_VAL ("failed to allocate space for workspace struct",
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GSL_ENOMEM, 0);
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}
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w->alist = (double *) malloc (n * sizeof (double));
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if (w->alist == 0)
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{
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free (w); /* exception in constructor, avoid memory leak */
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GSL_ERROR_VAL ("failed to allocate space for alist ranges",
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GSL_ENOMEM, 0);
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}
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w->blist = (double *) malloc (n * sizeof (double));
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if (w->blist == 0)
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{
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free (w->alist);
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free (w); /* exception in constructor, avoid memory leak */
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GSL_ERROR_VAL ("failed to allocate space for blist ranges",
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GSL_ENOMEM, 0);
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}
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w->rlist = (double *) malloc (n * sizeof (double));
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if (w->rlist == 0)
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{
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free (w->blist);
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free (w->alist);
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free (w); /* exception in constructor, avoid memory leak */
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GSL_ERROR_VAL ("failed to allocate space for rlist ranges",
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GSL_ENOMEM, 0);
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}
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w->elist = (double *) malloc (n * sizeof (double));
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if (w->elist == 0)
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{
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free (w->rlist);
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free (w->blist);
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free (w->alist);
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free (w); /* exception in constructor, avoid memory leak */
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GSL_ERROR_VAL ("failed to allocate space for elist ranges",
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GSL_ENOMEM, 0);
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}
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w->order = (size_t *) malloc (n * sizeof (size_t));
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if (w->order == 0)
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{
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free (w->elist);
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free (w->rlist);
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free (w->blist);
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free (w->alist);
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free (w); /* exception in constructor, avoid memory leak */
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GSL_ERROR_VAL ("failed to allocate space for order ranges",
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GSL_ENOMEM, 0);
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}
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w->level = (size_t *) malloc (n * sizeof (size_t));
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if (w->level == 0)
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{
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free (w->order);
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free (w->elist);
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free (w->rlist);
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free (w->blist);
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free (w->alist);
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free (w); /* exception in constructor, avoid memory leak */
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GSL_ERROR_VAL ("failed to allocate space for order ranges",
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GSL_ENOMEM, 0);
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}
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w->size = 0 ;
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w->limit = n ;
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w->maximum_level = 0 ;
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return w ;
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}
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void
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gsl_integration_workspace_free (gsl_integration_workspace * w)
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{
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RETURN_IF_NULL (w);
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free (w->level) ;
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free (w->order) ;
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free (w->elist) ;
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free (w->rlist) ;
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free (w->blist) ;
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free (w->alist) ;
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free (w) ;
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}
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/*
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size_t
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gsl_integration_workspace_limit (gsl_integration_workspace * w)
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{
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return w->limit ;
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}
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size_t
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gsl_integration_workspace_size (gsl_integration_workspace * w)
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{
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return w->size ;
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}
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*/
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