gcc/libgfortran/generated/transpose_i4.c

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/* Implementation of the TRANSPOSE intrinsic
Copyright 2003 Free Software Foundation, Inc.
Contributed by Tobias Schl<EFBFBD>ter
This file is part of the GNU Fortran 95 runtime library (libgfor).
Libgfor is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Ligbfor 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with libgfor; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "config.h"
#include <assert.h>
#include "libgfortran.h"
void
__transpose_4 (gfc_array_i4 * ret, gfc_array_i4 * source)
{
/* r.* indicates the return array. */
index_type rxstride, rystride;
GFC_INTEGER_4 *rptr;
/* s.* indicates the source array. */
index_type sxstride, systride;
const GFC_INTEGER_4 *sptr;
index_type xcount, ycount;
index_type x, y;
assert (GFC_DESCRIPTOR_RANK (source) == 2);
if (ret->dim[0].stride == 0)
ret->dim[0].stride = 1;
if (source->dim[0].stride == 0)
source->dim[0].stride = 1;
sxstride = source->dim[0].stride;
systride = source->dim[1].stride;
xcount = source->dim[0].ubound + 1 - source->dim[0].lbound;
ycount = source->dim[1].ubound + 1 - source->dim[1].lbound;
rxstride = ret->dim[0].stride;
rystride = ret->dim[1].stride;
rptr = ret->data;
sptr = source->data;
for (y=0; y < ycount; y++)
{
for (x=0; x < xcount; x++)
{
*rptr = *sptr;
sptr += sxstride;
rptr += rystride;
}
sptr += systride - (sxstride * xcount);
rptr += rxstride - (rystride * xcount);
}
}