Chris@10: /*
Chris@10:  * Copyright (c) 2003, 2007-11 Matteo Frigo
Chris@10:  * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
Chris@10:  *
Chris@10:  * This program is free software; you can redistribute it and/or modify
Chris@10:  * it under the terms of the GNU General Public License as published by
Chris@10:  * the Free Software Foundation; either version 2 of the License, or
Chris@10:  * (at your option) any later version.
Chris@10:  *
Chris@10:  * This program is distributed in the hope that it will be useful,
Chris@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@10:  * GNU General Public License for more details.
Chris@10:  *
Chris@10:  * You should have received a copy of the GNU General Public License
Chris@10:  * along with this program; if not, write to the Free Software
Chris@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
Chris@10:  *
Chris@10:  */
Chris@10: 
Chris@10: 
Chris@10: #include "ifftw.h"
Chris@10: 
Chris@10: /* constructor */
Chris@10: problem *X(mkproblem)(size_t sz, const problem_adt *adt)
Chris@10: {
Chris@10:      problem *p = (problem *)MALLOC(sz, PROBLEMS);
Chris@10: 
Chris@10:      p->adt = adt;
Chris@10:      return p;
Chris@10: }
Chris@10: 
Chris@10: /* destructor */
Chris@10: void X(problem_destroy)(problem *ego)
Chris@10: {
Chris@10:      if (ego)
Chris@10: 	  ego->adt->destroy(ego);
Chris@10: }
Chris@10: 
Chris@10: /* management of unsolvable problems */
Chris@10: static void unsolvable_destroy(problem *ego)
Chris@10: {
Chris@10:      UNUSED(ego);
Chris@10: }
Chris@10: 
Chris@10: static void unsolvable_hash(const problem *p, md5 *m)
Chris@10: {
Chris@10:      UNUSED(p);
Chris@10:      X(md5puts)(m, "unsolvable");
Chris@10: }
Chris@10: 
Chris@10: static void unsolvable_print(const problem *ego, printer *p)
Chris@10: {
Chris@10:      UNUSED(ego);
Chris@10:      p->print(p, "(unsolvable)");
Chris@10: }
Chris@10: 
Chris@10: static void unsolvable_zero(const problem *ego)
Chris@10: {
Chris@10:      UNUSED(ego);
Chris@10: }
Chris@10: 
Chris@10: static const problem_adt padt =
Chris@10: {
Chris@10:      PROBLEM_UNSOLVABLE,
Chris@10:      unsolvable_hash,
Chris@10:      unsolvable_zero,
Chris@10:      unsolvable_print,
Chris@10:      unsolvable_destroy
Chris@10: };
Chris@10: 
Chris@10: /* there is no point in malloc'ing this one */
Chris@10: static problem the_unsolvable_problem = { &padt };
Chris@10: 
Chris@10: problem *X(mkproblem_unsolvable)(void)
Chris@10: {
Chris@10:      return &the_unsolvable_problem;
Chris@10: }