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1 /* Implementation of the SHAPE intrinsic
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2 Copyright (C) 2002-2017 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 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
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29 #if defined (HAVE_GFC_INTEGER_4)
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30
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31 extern void shape_4 (gfc_array_i4 * const restrict ret,
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32 const array_t * const restrict array);
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33 export_proto(shape_4);
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34
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35 void
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36 shape_4 (gfc_array_i4 * const restrict ret,
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37 const array_t * const restrict array)
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38 {
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39 int n;
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40 index_type stride;
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41 index_type extent;
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42 int rank;
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43
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44 rank = GFC_DESCRIPTOR_RANK (array);
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45
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46 if (ret->base_addr == NULL)
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47 {
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48 GFC_DIMENSION_SET(ret->dim[0], 0, rank - 1, 1);
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49 ret->offset = 0;
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50 ret->base_addr = xmallocarray (rank, sizeof (GFC_INTEGER_4));
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51 }
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52
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53 stride = GFC_DESCRIPTOR_STRIDE(ret,0);
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54
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55 if (GFC_DESCRIPTOR_EXTENT(ret,0) < 1)
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56 return;
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57
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58 for (n = 0; n < rank; n++)
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59 {
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60 extent = GFC_DESCRIPTOR_EXTENT(array,n);
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61 ret->base_addr[n * stride] = extent > 0 ? extent : 0 ;
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62 }
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63 }
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64
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65 #endif
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