/* poly/zsolve_init.c

 * 

 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 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.

 */

#include <config.h>

#include <math.h>

#include <gsl/gsl_math.h>

#include <gsl/gsl_complex.h>

#include <gsl/gsl_poly.h>

#include <gsl/gsl_errno.h>

gsl_poly_complex_workspace * 

gsl_poly_complex_workspace_alloc (size_t n)

{

  size_t nc ;

  gsl_poly_complex_workspace * w ;

  if (n == 0)

    {

      GSL_ERROR_VAL ("matrix size n must be positive integer", GSL_EDOM, 0);

    }

  w = (gsl_poly_complex_workspace *) 

    malloc (sizeof(gsl_poly_complex_workspace));

  if (w == 0)

    {

      GSL_ERROR_VAL ("failed to allocate space for struct", GSL_ENOMEM, 0);

    }

  nc = n - 1;

  w->nc = nc;

  w->matrix = (double *) malloc (nc * nc * sizeof(double));

  if (w->matrix == 0)

    {

      free (w) ;       /* error in constructor, avoid memory leak */

      GSL_ERROR_VAL ("failed to allocate space for workspace matrix", 

                        GSL_ENOMEM, 0);

    }

  return w ;

}

void 

gsl_poly_complex_workspace_free (gsl_poly_complex_workspace * w)

{

  RETURN_IF_NULL (w);

  free(w->matrix) ;

  free(w);

}