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1 /*
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2 * Copyright (c) 2003, 2007-14 Matteo Frigo
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3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
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4 *
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5 * This program is free software; you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation; either version 2 of the License, or
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8 * (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program; if not, write to the Free Software
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17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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18 *
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19 */
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20
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21 #include "api/api.h"
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22
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23 tensor *MKTENSOR_IODIMS(int rank, const IODIM *dims, int is, int os)
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24 {
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25 int i;
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26 tensor *x = X(mktensor)(rank);
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27
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28 if (FINITE_RNK(rank)) {
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29 for (i = 0; i < rank; ++i) {
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30 x->dims[i].n = dims[i].n;
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31 x->dims[i].is = dims[i].is * is;
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32 x->dims[i].os = dims[i].os * os;
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33 }
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34 }
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35 return x;
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36 }
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37
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38 static int iodims_kosherp(int rank, const IODIM *dims, int allow_minfty)
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39 {
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40 int i;
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41
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42 if (rank < 0) return 0;
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43
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44 if (allow_minfty) {
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45 if (!FINITE_RNK(rank)) return 1;
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46 for (i = 0; i < rank; ++i)
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47 if (dims[i].n < 0) return 0;
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48 } else {
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49 if (!FINITE_RNK(rank)) return 0;
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50 for (i = 0; i < rank; ++i)
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51 if (dims[i].n <= 0) return 0;
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52 }
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53
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54 return 1;
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55 }
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56
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57 int GURU_KOSHERP(int rank, const IODIM *dims,
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58 int howmany_rank, const IODIM *howmany_dims)
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59 {
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60 return (iodims_kosherp(rank, dims, 0) &&
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61 iodims_kosherp(howmany_rank, howmany_dims, 1));
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62 }
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