cannam@95: /*
cannam@95:  * Copyright (c) 2003, 2007-11 Matteo Frigo
cannam@95:  * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
cannam@95:  *
cannam@95:  * This program is free software; you can redistribute it and/or modify
cannam@95:  * it under the terms of the GNU General Public License as published by
cannam@95:  * the Free Software Foundation; either version 2 of the License, or
cannam@95:  * (at your option) any later version.
cannam@95:  *
cannam@95:  * This program is distributed in the hope that it will be useful,
cannam@95:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@95:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cannam@95:  * GNU General Public License for more details.
cannam@95:  *
cannam@95:  * You should have received a copy of the GNU General Public License
cannam@95:  * along with this program; if not, write to the Free Software
cannam@95:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
cannam@95:  *
cannam@95:  */
cannam@95: 
cannam@95: 
cannam@95: #include "ifftw.h"
cannam@95: 
cannam@95: /* constructor */
cannam@95: problem *X(mkproblem)(size_t sz, const problem_adt *adt)
cannam@95: {
cannam@95:      problem *p = (problem *)MALLOC(sz, PROBLEMS);
cannam@95: 
cannam@95:      p->adt = adt;
cannam@95:      return p;
cannam@95: }
cannam@95: 
cannam@95: /* destructor */
cannam@95: void X(problem_destroy)(problem *ego)
cannam@95: {
cannam@95:      if (ego)
cannam@95: 	  ego->adt->destroy(ego);
cannam@95: }
cannam@95: 
cannam@95: /* management of unsolvable problems */
cannam@95: static void unsolvable_destroy(problem *ego)
cannam@95: {
cannam@95:      UNUSED(ego);
cannam@95: }
cannam@95: 
cannam@95: static void unsolvable_hash(const problem *p, md5 *m)
cannam@95: {
cannam@95:      UNUSED(p);
cannam@95:      X(md5puts)(m, "unsolvable");
cannam@95: }
cannam@95: 
cannam@95: static void unsolvable_print(const problem *ego, printer *p)
cannam@95: {
cannam@95:      UNUSED(ego);
cannam@95:      p->print(p, "(unsolvable)");
cannam@95: }
cannam@95: 
cannam@95: static void unsolvable_zero(const problem *ego)
cannam@95: {
cannam@95:      UNUSED(ego);
cannam@95: }
cannam@95: 
cannam@95: static const problem_adt padt =
cannam@95: {
cannam@95:      PROBLEM_UNSOLVABLE,
cannam@95:      unsolvable_hash,
cannam@95:      unsolvable_zero,
cannam@95:      unsolvable_print,
cannam@95:      unsolvable_destroy
cannam@95: };
cannam@95: 
cannam@95: /* there is no point in malloc'ing this one */
cannam@95: static problem the_unsolvable_problem = { &padt };
cannam@95: 
cannam@95: problem *X(mkproblem_unsolvable)(void)
cannam@95: {
cannam@95:      return &the_unsolvable_problem;
cannam@95: }