gcc/libgfortran/generated/transpose_r4.c
Francois-Xavier Coudert ecebfb8be1 re PR fortran/26769 (Implement transpose() and reshape() for real instead of using integer)
PR libfortran/26769

	* iresolve.c (gfc_resolve_reshape): Call reshape_r4 and
	reshape_r8 instead of reshape_4 and reshape_8.
	(gfc_resolve_transpose): Likewise for transpose.

	* Makefile.am: Add r4 and r8 versions of reshape and transpose.
	* Makefile.in: Regenerate.
	* generated/reshape_r4.c: New file.
	* generated/reshape_r8.c: New file.
	* generated/transpose_r4.c: New file.
	* generated/transpose_r8.c: New file.

From-SVN: r114880
2006-06-22 06:04:02 +00:00

100 lines
3.1 KiB
C

/* Implementation of the TRANSPOSE intrinsic
Copyright 2003, 2005, 2006 Free Software Foundation, Inc.
Contributed by Tobias Schlüter
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 2 of the License, or (at your option) any later version.
In addition to the permissions in the GNU General Public License, the
Free Software Foundation gives you unlimited permission to link the
compiled version of this file into combinations with other programs,
and to distribute those combinations without any restriction coming
from the use of this file. (The General Public License restrictions
do apply in other respects; for example, they cover modification of
the file, and distribution when not linked into a combine
executable.)
Libgfortran 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.
You should have received a copy of the GNU General Public
License along with libgfortran; see the file COPYING. If not,
write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#include "config.h"
#include <assert.h>
#include "libgfortran.h"
#if defined (HAVE_GFC_REAL_4)
extern void transpose_r4 (gfc_array_r4 * const restrict ret,
gfc_array_r4 * const restrict source);
export_proto(transpose_r4);
void
transpose_r4 (gfc_array_r4 * const restrict ret,
gfc_array_r4 * const restrict source)
{
/* r.* indicates the return array. */
index_type rxstride, rystride;
GFC_REAL_4 *rptr;
/* s.* indicates the source array. */
index_type sxstride, systride;
const GFC_REAL_4 *sptr;
index_type xcount, ycount;
index_type x, y;
assert (GFC_DESCRIPTOR_RANK (source) == 2);
if (ret->data == NULL)
{
assert (GFC_DESCRIPTOR_RANK (ret) == 2);
assert (ret->dtype == source->dtype);
ret->dim[0].lbound = 0;
ret->dim[0].ubound = source->dim[1].ubound - source->dim[1].lbound;
ret->dim[0].stride = 1;
ret->dim[1].lbound = 0;
ret->dim[1].ubound = source->dim[0].ubound - source->dim[0].lbound;
ret->dim[1].stride = ret->dim[0].ubound+1;
ret->data = internal_malloc_size (sizeof (GFC_REAL_4) * size0 ((array_t *) ret));
ret->offset = 0;
}
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);
}
}
#endif