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1 /* Implementation of the size intrinsic.
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2 Copyright (C) 2002-2018 Free Software Foundation, Inc.
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3 Contributed by Paul Brook <paul@nowt.org>
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4
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5 This file is part of the GNU Fortran 95 runtime library (libgfortran).
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6
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7 Libgfortran is free software; you can redistribute it and/or
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8 modify it under the terms of the GNU General Public
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9 License as published by the Free Software Foundation; either
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10 version 3 of the License, or (at your option) any later version.
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11
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12 Libgfortran is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 Under Section 7 of GPL version 3, you are granted additional
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18 permissions described in the GCC Runtime Library Exception, version
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19 3.1, as published by the Free Software Foundation.
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20
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21 You should have received a copy of the GNU General Public License and
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22 a copy of the GCC Runtime Library Exception along with this program;
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23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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24 <http://www.gnu.org/licenses/>. */
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25
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26 #include "libgfortran.h"
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27
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28 index_type
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29 size0 (const array_t * array)
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30 {
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31 int n;
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32 index_type size;
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33 index_type len;
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34
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35 size = 1;
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36 for (n = 0; n < GFC_DESCRIPTOR_RANK (array); n++)
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37 {
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38 len = GFC_DESCRIPTOR_EXTENT(array,n);
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39 if (len < 0)
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40 len = 0;
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41 size *= len;
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42 }
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43 return size;
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44 }
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45 iexport(size0);
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46
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47 extern index_type size1 (const array_t * array, index_type dim);
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48 export_proto(size1);
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49
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50 index_type
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51 size1 (const array_t * array, index_type dim)
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52 {
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53 index_type size;
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54
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55 dim--;
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56
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57 size = GFC_DESCRIPTOR_EXTENT(array,dim);
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58 if (size < 0)
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59 size = 0;
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60 return size;
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61 }
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