/* Implementation of the EOSHIFT intrinsic
- Copyright 2002, 2005 Free Software Foundation, Inc.
+ Copyright 2002, 2005, 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 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.)
+version 3 of the License, or (at your option) any later version.
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., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+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 "config.h"
+#include "libgfortran.h"
#include <stdlib.h>
#include <assert.h>
#include <string.h>
-#include "libgfortran.h"
-static const char zeros[16] =
- {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-extern void eoshift3_4 (gfc_array_char *, gfc_array_char *,
- gfc_array_i4 *, const gfc_array_char *,
- GFC_INTEGER_4 *);
-export_proto(eoshift3_4);
+#if defined (HAVE_GFC_INTEGER_4)
-void
-eoshift3_4 (gfc_array_char *ret, gfc_array_char *array,
- gfc_array_i4 *h, const gfc_array_char *bound,
- GFC_INTEGER_4 *pwhich)
+static void
+eoshift3 (gfc_array_char * const restrict ret,
+ const gfc_array_char * const restrict array,
+ const gfc_array_i4 * const restrict h,
+ const gfc_array_char * const restrict bound,
+ const GFC_INTEGER_4 * const restrict pwhich,
+ index_type size, const char * filler, index_type filler_len)
{
/* r.* indicates the return array. */
index_type rstride[GFC_MAX_DIMENSIONS];
index_type rstride0;
index_type roffset;
char *rptr;
- char *dest;
+ char * restrict dest;
/* s.* indicates the source array. */
index_type sstride[GFC_MAX_DIMENSIONS];
index_type sstride0;
index_type count[GFC_MAX_DIMENSIONS];
index_type extent[GFC_MAX_DIMENSIONS];
index_type dim;
- index_type size;
index_type len;
index_type n;
int which;
else
which = 0;
- size = GFC_DESCRIPTOR_SIZE (ret);
if (ret->data == NULL)
{
int i;
ret->data = internal_malloc_size (size * size0 ((array_t *)array));
- ret->base = 0;
+ ret->offset = 0;
ret->dtype = array->dtype;
for (i = 0; i < GFC_DESCRIPTOR_RANK (array); i++)
{
ret->dim[i].stride = (ret->dim[i-1].ubound + 1) * ret->dim[i-1].stride;
}
}
+ else
+ {
+ if (size0 ((array_t *) ret) == 0)
+ return;
+ }
extent[0] = 1;
count[0] = 0;
- size = GFC_DESCRIPTOR_SIZE (array);
n = 0;
for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
{
hstride[n] = h->dim[n].stride;
if (bound)
- bstride[n] = bound->dim[n].stride;
+ bstride[n] = bound->dim[n].stride * size;
else
bstride[n] = 0;
n++;
if (bound)
bptr = bound->data;
else
- bptr = zeros;
+ bptr = NULL;
while (rptr)
{
/* Do the shift for this dimension. */
sh = *hptr;
- delta = (sh >= 0) ? sh: -sh;
+ if (( sh >= 0 ? sh : -sh ) > len)
+ {
+ delta = len;
+ sh = len;
+ }
+ else
+ delta = (sh >= 0) ? sh: -sh;
+
if (sh > 0)
{
src = &sptr[delta * soffset];
dest = rptr;
n = delta;
- while (n--)
- {
- memcpy (dest, bptr, size);
- dest += roffset;
- }
+ if (bptr)
+ while (n--)
+ {
+ memcpy (dest, bptr, size);
+ dest += roffset;
+ }
+ else
+ while (n--)
+ {
+ index_type i;
+
+ if (filler_len == 1)
+ memset (dest, filler[0], size);
+ else
+ for (i = 0; i < size; i += filler_len)
+ memcpy (&dest[i], filler, filler_len);
+
+ dest += roffset;
+ }
/* Advance to the next section. */
rptr += rstride0;
the next dimension. */
count[n] = 0;
/* We could precalculate these products, but this is a less
- frequently used path so proabably not worth it. */
+ frequently used path so probably not worth it. */
rptr -= rstride[n] * extent[n];
sptr -= sstride[n] * extent[n];
hptr -= hstride[n] * extent[n];
}
}
}
+
+extern void eoshift3_4 (gfc_array_char * const restrict,
+ const gfc_array_char * const restrict,
+ const gfc_array_i4 * const restrict,
+ const gfc_array_char * const restrict,
+ const GFC_INTEGER_4 *);
+export_proto(eoshift3_4);
+
+void
+eoshift3_4 (gfc_array_char * const restrict ret,
+ const gfc_array_char * const restrict array,
+ const gfc_array_i4 * const restrict h,
+ const gfc_array_char * const restrict bound,
+ const GFC_INTEGER_4 * const restrict pwhich)
+{
+ eoshift3 (ret, array, h, bound, pwhich, GFC_DESCRIPTOR_SIZE (array),
+ "\0", 1);
+}
+
+
+extern void eoshift3_4_char (gfc_array_char * const restrict,
+ GFC_INTEGER_4,
+ const gfc_array_char * const restrict,
+ const gfc_array_i4 * const restrict,
+ const gfc_array_char * const restrict,
+ const GFC_INTEGER_4 * const restrict,
+ GFC_INTEGER_4, GFC_INTEGER_4);
+export_proto(eoshift3_4_char);
+
+void
+eoshift3_4_char (gfc_array_char * const restrict ret,
+ GFC_INTEGER_4 ret_length __attribute__((unused)),
+ const gfc_array_char * const restrict array,
+ const gfc_array_i4 * const restrict h,
+ const gfc_array_char * const restrict bound,
+ const GFC_INTEGER_4 * const restrict pwhich,
+ GFC_INTEGER_4 array_length,
+ GFC_INTEGER_4 bound_length __attribute__((unused)))
+{
+ eoshift3 (ret, array, h, bound, pwhich, array_length, " ", 1);
+}
+
+
+extern void eoshift3_4_char4 (gfc_array_char * const restrict,
+ GFC_INTEGER_4,
+ const gfc_array_char * const restrict,
+ const gfc_array_i4 * const restrict,
+ const gfc_array_char * const restrict,
+ const GFC_INTEGER_4 * const restrict,
+ GFC_INTEGER_4, GFC_INTEGER_4);
+export_proto(eoshift3_4_char4);
+
+void
+eoshift3_4_char4 (gfc_array_char * const restrict ret,
+ GFC_INTEGER_4 ret_length __attribute__((unused)),
+ const gfc_array_char * const restrict array,
+ const gfc_array_i4 * const restrict h,
+ const gfc_array_char * const restrict bound,
+ const GFC_INTEGER_4 * const restrict pwhich,
+ GFC_INTEGER_4 array_length,
+ GFC_INTEGER_4 bound_length __attribute__((unused)))
+{
+ static const gfc_char4_t space = (unsigned char) ' ';
+ eoshift3 (ret, array, h, bound, pwhich, array_length * sizeof (gfc_char4_t),
+ (const char *) &space, sizeof (gfc_char4_t));
+}
+
+#endif
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