| /* poly/zsolve_init.c |
| * |
| * Copyright (C) 1996, 1997, 1998, 1999, 2000 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 2 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) |
| { |
| free(w->matrix) ; |
| free(w); |
| } |