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: #include "api.h"
cannam@95: 
cannam@95: tensor *MKTENSOR_IODIMS(int rank, const IODIM *dims, int is, int os)
cannam@95: {
cannam@95:      int i;
cannam@95:      tensor *x = X(mktensor)(rank);
cannam@95: 
cannam@95:      if (FINITE_RNK(rank)) {
cannam@95:           for (i = 0; i < rank; ++i) {
cannam@95:                x->dims[i].n = dims[i].n;
cannam@95:                x->dims[i].is = dims[i].is * is;
cannam@95:                x->dims[i].os = dims[i].os * os;
cannam@95:           }
cannam@95:      }
cannam@95:      return x;
cannam@95: }
cannam@95: 
cannam@95: static int iodims_kosherp(int rank, const IODIM *dims, int allow_minfty)
cannam@95: {
cannam@95:      int i;
cannam@95: 
cannam@95:      if (rank < 0) return 0;
cannam@95: 
cannam@95:      if (allow_minfty) {
cannam@95: 	  if (!FINITE_RNK(rank)) return 1;
cannam@95: 	  for (i = 0; i < rank; ++i)
cannam@95: 	       if (dims[i].n < 0) return 0;
cannam@95:      } else {
cannam@95: 	  if (!FINITE_RNK(rank)) return 0;
cannam@95: 	  for (i = 0; i < rank; ++i)
cannam@95: 	       if (dims[i].n <= 0) return 0;
cannam@95:      }
cannam@95: 
cannam@95:      return 1;
cannam@95: }
cannam@95: 
cannam@95: int GURU_KOSHERP(int rank, const IODIM *dims,
cannam@95: 		 int howmany_rank, const IODIM *howmany_dims)
cannam@95: {
cannam@95:      return (iodims_kosherp(rank, dims, 0) &&
cannam@95: 	     iodims_kosherp(howmany_rank, howmany_dims, 1));
cannam@95: }