Chris@42: /*
Chris@42:  * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@42:  * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@42:  *
Chris@42:  * This program is free software; you can redistribute it and/or modify
Chris@42:  * it under the terms of the GNU General Public License as published by
Chris@42:  * the Free Software Foundation; either version 2 of the License, or
Chris@42:  * (at your option) any later version.
Chris@42:  *
Chris@42:  * This program is distributed in the hope that it will be useful,
Chris@42:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@42:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@42:  * GNU General Public License for more details.
Chris@42:  *
Chris@42:  * You should have received a copy of the GNU General Public License
Chris@42:  * along with this program; if not, write to the Free Software
Chris@42:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
Chris@42:  *
Chris@42:  */
Chris@42: 
Chris@42: 
Chris@42: #include "ifftw.h"
Chris@42: 
Chris@42: /* constructor */
Chris@42: problem *X(mkproblem)(size_t sz, const problem_adt *adt)
Chris@42: {
Chris@42:      problem *p = (problem *)MALLOC(sz, PROBLEMS);
Chris@42: 
Chris@42:      p->adt = adt;
Chris@42:      return p;
Chris@42: }
Chris@42: 
Chris@42: /* destructor */
Chris@42: void X(problem_destroy)(problem *ego)
Chris@42: {
Chris@42:      if (ego)
Chris@42: 	  ego->adt->destroy(ego);
Chris@42: }
Chris@42: 
Chris@42: /* management of unsolvable problems */
Chris@42: static void unsolvable_destroy(problem *ego)
Chris@42: {
Chris@42:      UNUSED(ego);
Chris@42: }
Chris@42: 
Chris@42: static void unsolvable_hash(const problem *p, md5 *m)
Chris@42: {
Chris@42:      UNUSED(p);
Chris@42:      X(md5puts)(m, "unsolvable");
Chris@42: }
Chris@42: 
Chris@42: static void unsolvable_print(const problem *ego, printer *p)
Chris@42: {
Chris@42:      UNUSED(ego);
Chris@42:      p->print(p, "(unsolvable)");
Chris@42: }
Chris@42: 
Chris@42: static void unsolvable_zero(const problem *ego)
Chris@42: {
Chris@42:      UNUSED(ego);
Chris@42: }
Chris@42: 
Chris@42: static const problem_adt padt =
Chris@42: {
Chris@42:      PROBLEM_UNSOLVABLE,
Chris@42:      unsolvable_hash,
Chris@42:      unsolvable_zero,
Chris@42:      unsolvable_print,
Chris@42:      unsolvable_destroy
Chris@42: };
Chris@42: 
Chris@42: /* there is no point in malloc'ing this one */
Chris@42: static problem the_unsolvable_problem = { &padt };
Chris@42: 
Chris@42: problem *X(mkproblem_unsolvable)(void)
Chris@42: {
Chris@42:      return &the_unsolvable_problem;
Chris@42: }