/* Generic 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., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, 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"
/* TODO: make this work for large shifts when
sizeof(int) < sizeof (index_type). */
static void
eoshift0 (gfc_array_char * ret, const gfc_array_char * array,
int shift, const char * pbound, int which, index_type size,
- char filler)
+ 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 * restrict rptr;
char *dest;
/* s.* indicates the source array. */
index_type sstride[GFC_MAX_DIMENSIONS];
index_type dim;
index_type len;
index_type n;
+ index_type arraysize;
/* The compiler cannot figure out that these are set, initialize
them to avoid warnings. */
soffset = 0;
roffset = 0;
+ arraysize = size0 ((array_t *) array);
+
if (ret->data == NULL)
{
int i;
- ret->data = internal_malloc_size (size * size0 ((array_t *)array));
ret->offset = 0;
ret->dtype = array->dtype;
for (i = 0; i < GFC_DESCRIPTOR_RANK (array); i++)
{
- ret->dim[i].lbound = 0;
- ret->dim[i].ubound = array->dim[i].ubound - array->dim[i].lbound;
+ index_type ub, str;
+
+ ub = GFC_DESCRIPTOR_EXTENT(array,i) - 1;
if (i == 0)
- ret->dim[i].stride = 1;
+ str = 1;
else
- ret->dim[i].stride = (ret->dim[i-1].ubound + 1) * ret->dim[i-1].stride;
+ str = GFC_DESCRIPTOR_EXTENT(ret,i-1)
+ * GFC_DESCRIPTOR_STRIDE(ret,i-1);
+
+ GFC_DIMENSION_SET(ret->dim[i], 0, ub, str);
+
}
+
+ if (arraysize > 0)
+ ret->data = internal_malloc_size (size * arraysize);
+ else
+ ret->data = internal_malloc_size (1);
+
}
+ else if (unlikely (compile_options.bounds_check))
+ {
+ bounds_equal_extents ((array_t *) ret, (array_t *) array,
+ "return value", "EOSHIFT");
+ }
+
+ if (arraysize == 0)
+ return;
which = which - 1;
extent[0] = 1;
count[0] = 0;
+ sstride[0] = -1;
+ rstride[0] = -1;
n = 0;
for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++)
{
if (dim == which)
{
- roffset = ret->dim[dim].stride * size;
+ roffset = GFC_DESCRIPTOR_STRIDE_BYTES(ret,dim);
if (roffset == 0)
roffset = size;
- soffset = array->dim[dim].stride * size;
+ soffset = GFC_DESCRIPTOR_STRIDE_BYTES(array,dim);
if (soffset == 0)
soffset = size;
- len = array->dim[dim].ubound + 1 - array->dim[dim].lbound;
+ len = GFC_DESCRIPTOR_EXTENT(array,dim);
}
else
{
count[n] = 0;
- extent[n] = array->dim[dim].ubound + 1 - array->dim[dim].lbound;
- rstride[n] = ret->dim[dim].stride * size;
- sstride[n] = array->dim[dim].stride * size;
+ extent[n] = GFC_DESCRIPTOR_EXTENT(array,dim);
+ rstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(ret,dim);
+ sstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(array,dim);
n++;
}
}
else
while (n--)
{
- memset (dest, filler, size);
+ 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;
}
const GFC_INTEGER_##N *pdim) \
{ \
eoshift0 (ret, array, *pshift, pbound, pdim ? *pdim : 1, \
- GFC_DESCRIPTOR_SIZE (array), 0); \
+ GFC_DESCRIPTOR_SIZE (array), "\0", 1); \
} \
\
extern void eoshift0_##N##_char (gfc_array_char *, GFC_INTEGER_4, \
GFC_INTEGER_4 bound_length __attribute__((unused))) \
{ \
eoshift0 (ret, array, *pshift, pbound, pdim ? *pdim : 1, \
- array_length, ' '); \
+ array_length, " ", 1); \
+ } \
+ \
+ extern void eoshift0_##N##_char4 (gfc_array_char *, GFC_INTEGER_4, \
+ const gfc_array_char *, \
+ const GFC_INTEGER_##N *, const char *, \
+ const GFC_INTEGER_##N *, GFC_INTEGER_4, \
+ GFC_INTEGER_4); \
+ export_proto(eoshift0_##N##_char4); \
+ \
+ void \
+ eoshift0_##N##_char4 (gfc_array_char *ret, \
+ GFC_INTEGER_4 ret_length __attribute__((unused)), \
+ const gfc_array_char *array, \
+ const GFC_INTEGER_##N *pshift, \
+ const char *pbound, \
+ const GFC_INTEGER_##N *pdim, \
+ GFC_INTEGER_4 array_length, \
+ GFC_INTEGER_4 bound_length __attribute__((unused))) \
+ { \
+ static const gfc_char4_t space = (unsigned char) ' '; \
+ eoshift0 (ret, array, *pshift, pbound, pdim ? *pdim : 1, \
+ array_length * sizeof (gfc_char4_t), (const char *) &space, \
+ sizeof (gfc_char4_t)); \
}
DEFINE_EOSHIFT (1);
DEFINE_EOSHIFT (2);
DEFINE_EOSHIFT (4);
DEFINE_EOSHIFT (8);
+#ifdef HAVE_GFC_INTEGER_16
+DEFINE_EOSHIFT (16);
+#endif
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