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: #include "api.h"
Chris@10: 
Chris@10: tensor *MKTENSOR_IODIMS(int rank, const IODIM *dims, int is, int os)
Chris@10: {
Chris@10:      int i;
Chris@10:      tensor *x = X(mktensor)(rank);
Chris@10: 
Chris@10:      if (FINITE_RNK(rank)) {
Chris@10:           for (i = 0; i < rank; ++i) {
Chris@10:                x->dims[i].n = dims[i].n;
Chris@10:                x->dims[i].is = dims[i].is * is;
Chris@10:                x->dims[i].os = dims[i].os * os;
Chris@10:           }
Chris@10:      }
Chris@10:      return x;
Chris@10: }
Chris@10: 
Chris@10: static int iodims_kosherp(int rank, const IODIM *dims, int allow_minfty)
Chris@10: {
Chris@10:      int i;
Chris@10: 
Chris@10:      if (rank < 0) return 0;
Chris@10: 
Chris@10:      if (allow_minfty) {
Chris@10: 	  if (!FINITE_RNK(rank)) return 1;
Chris@10: 	  for (i = 0; i < rank; ++i)
Chris@10: 	       if (dims[i].n < 0) return 0;
Chris@10:      } else {
Chris@10: 	  if (!FINITE_RNK(rank)) return 0;
Chris@10: 	  for (i = 0; i < rank; ++i)
Chris@10: 	       if (dims[i].n <= 0) return 0;
Chris@10:      }
Chris@10: 
Chris@10:      return 1;
Chris@10: }
Chris@10: 
Chris@10: int GURU_KOSHERP(int rank, const IODIM *dims,
Chris@10: 		 int howmany_rank, const IODIM *howmany_dims)
Chris@10: {
Chris@10:      return (iodims_kosherp(rank, dims, 0) &&
Chris@10: 	     iodims_kosherp(howmany_rank, howmany_dims, 1));
Chris@10: }