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 *X(mktensor_rowmajor)(int rnk, const int *n,
Chris@10: 			     const int *niphys, const int *nophys,
Chris@10: 			     int is, int os)
Chris@10: {
Chris@10:      tensor *x = X(mktensor)(rnk);
Chris@10: 
Chris@10:      if (FINITE_RNK(rnk) && rnk > 0) {
Chris@10:           int i;
Chris@10: 
Chris@10:           A(n && niphys && nophys);
Chris@10:           x->dims[rnk - 1].is = is;
Chris@10:           x->dims[rnk - 1].os = os;
Chris@10:           x->dims[rnk - 1].n = n[rnk - 1];
Chris@10:           for (i = rnk - 1; i > 0; --i) {
Chris@10:                x->dims[i - 1].is = x->dims[i].is * niphys[i];
Chris@10:                x->dims[i - 1].os = x->dims[i].os * nophys[i];
Chris@10:                x->dims[i - 1].n = n[i - 1];
Chris@10:           }
Chris@10:      }
Chris@10:      return x;
Chris@10: }
Chris@10: 
Chris@10: static int rowmajor_kosherp(int rnk, const int *n)
Chris@10: {
Chris@10:      int i;
Chris@10: 
Chris@10:      if (!FINITE_RNK(rnk)) return 0;
Chris@10:      if (rnk < 0) return 0;
Chris@10: 
Chris@10:      for (i = 0; i < rnk; ++i)
Chris@10: 	  if (n[i] <= 0) return 0;
Chris@10: 
Chris@10:      return 1;
Chris@10: }
Chris@10: 
Chris@10: int X(many_kosherp)(int rnk, const int *n, int howmany)
Chris@10: {
Chris@10:      return (howmany >= 0) && rowmajor_kosherp(rnk, n);
Chris@10: }