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1 /* Implementation of the RESHAPE intrinsic for packed arrays
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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 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 Ligbfortran 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 #include <string.h>
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29
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30 /* Reshape function where all arrays are packed. Basically just memcpy. */
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31
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32 void
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33 reshape_packed (char * restrict ret, index_type rsize, const char * source,
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34 index_type ssize, const char * pad, index_type psize)
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35 {
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36 index_type size;
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37
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38 size = (rsize > ssize) ? ssize : rsize;
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39 memcpy (ret, source, size);
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40 ret += size;
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41 rsize -= size;
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42 while (rsize > 0)
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43 {
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44 size = (rsize > psize) ? psize : rsize;
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45 memcpy (ret, pad, size);
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46 ret += size;
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47 rsize -= size;
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48 }
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49 }
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