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4ee9c684 1/* Implementation of the RESHAPE intrinsic for packed arrays
f1717362 2 Copyright (C) 2002-2016 Free Software Foundation, Inc.
4ee9c684 3 Contributed by Paul Brook <paul@nowt.org>
4
b417ea8c 5This file is part of the GNU Fortran 95 runtime library (libgfortran).
4ee9c684 6
b417ea8c 7Libgfortran is free software; you can redistribute it and/or
8modify it under the terms of the GNU General Public
4ee9c684 9License as published by the Free Software Foundation; either
6bc9506f 10version 3 of the License, or (at your option) any later version.
b417ea8c 11
12Ligbfortran is distributed in the hope that it will be useful,
4ee9c684 13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
b417ea8c 15GNU General Public License for more details.
4ee9c684 16
6bc9506f 17Under Section 7 of GPL version 3, you are granted additional
18permissions described in the GCC Runtime Library Exception, version
193.1, as published by the Free Software Foundation.
20
21You should have received a copy of the GNU General Public License and
22a copy of the GCC Runtime Library Exception along with this program;
23see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24<http://www.gnu.org/licenses/>. */
4ee9c684 25
4ee9c684 26#include "libgfortran.h"
27
28#include <string.h>
29
30/* Reshape function where all arrays are packed. Basically just memcpy. */
31
32void
9d259edf 33reshape_packed (char * restrict ret, index_type rsize, const char * source,
4ee9c684 34 index_type ssize, const char * pad, index_type psize)
35{
36 index_type size;
37
38 size = (rsize > ssize) ? ssize : rsize;
39 memcpy (ret, source, size);
40 ret += size;
41 rsize -= size;
42 while (rsize > 0)
43 {
44 size = (rsize > psize) ? psize : rsize;
45 memcpy (ret, pad, size);
46 ret += size;
47 rsize -= size;
48 }
49}