gcc/libgfortran/intrinsics/reshape_packed.c

50 lines
1.6 KiB
C

/* Implementation of the RESHAPE intrinsic for packed arrays
Copyright 2002, 2007, 2009 Free Software Foundation, Inc.
Contributed by Paul Brook <paul@nowt.org>
This file is part of the GNU Fortran 95 runtime library (libgfortran).
Libgfortran is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
Ligbfortran is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "libgfortran.h"
#include <string.h>
/* Reshape function where all arrays are packed. Basically just memcpy. */
void
reshape_packed (char * restrict ret, index_type rsize, const char * source,
index_type ssize, const char * pad, index_type psize)
{
index_type size;
size = (rsize > ssize) ? ssize : rsize;
memcpy (ret, source, size);
ret += size;
rsize -= size;
while (rsize > 0)
{
size = (rsize > psize) ? psize : rsize;
memcpy (ret, pad, size);
ret += size;
rsize -= size;
}
}