Viewing file:  contiguous-2-c.c (2.71 KB) -rw-r--r--
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#include <stdlib.h>
#include <stdio.h>
#include <ISO_Fortran_binding.h>
#include "dump-descriptors.h"
extern void ctest1 (CFI_cdesc_t *a);
extern void ctest2 (CFI_cdesc_t *a);
extern void ftest1 (CFI_cdesc_t *a, int first, int last, int step);
extern void ftest2 (CFI_cdesc_t *a, int first, int last, int step);
#if 0
static void
dump_array (CFI_cdesc_t *a, const char *name, const char *note)
{
int i;
fprintf (stderr, "%s\n", note);
for (i = 0; i < a->dim[0].extent; i++)
{
int j = i + a->dim[0].lower_bound;
int elt;
CFI_index_t sub[1];
sub[0] = j;
elt = *((int *) CFI_address (a, sub));
fprintf (stderr, "%s[%d] = %d\n", name, j, elt);
}
fprintf (stderr, "\n");
}
#else
#define dump_array(a, name, note)
#endif
static void
ctest (CFI_cdesc_t *a, int lb, int ub, int s,
void (*fn) (CFI_cdesc_t *, int, int, int))
{
CFI_CDESC_T(1) bdesc;
CFI_cdesc_t *b = (CFI_cdesc_t *) &bdesc;
CFI_index_t lb_array[1], ub_array[1], s_array[1];
int i;
/* Dump the descriptor contents to test that we can access the fields
correctly, etc. */
dump_CFI_cdesc_t (a);
/* Make sure we got a valid descriptor. */
if (!a->base_addr)
abort ();
if (a->elem_len != sizeof(int))
abort ();
if (a->rank != 1)
abort ();
if (a->type != CFI_type_int)
abort ();
if (a->attribute != CFI_attribute_other)
abort ();
/* Create an array section and pass it to fn. */
check_CFI_status ("CFI_establish",
CFI_establish (b, NULL, CFI_attribute_other,
CFI_type_int,
sizeof (int), 1, NULL));
lb_array[0] = lb - 1 + a->dim[0].lower_bound;
ub_array[0] = ub - 1 + a->dim[0].lower_bound;
s_array[0] = s;
check_CFI_status ("CFI_section",
CFI_section (b, a, lb_array, ub_array, s_array));
dump_CFI_cdesc_t (b);
dump_array (b, "b", "b after CFI_section");
/* Pass it to the Fortran function fn. */
if (CFI_is_contiguous (b))
abort ();
(*fn) (b, lb, ub, s);
dump_CFI_cdesc_t (b);
dump_array (b, "b", "b after calling Fortran fn");
/* fn is supposed to negate the elements of the array section it
receives. Check that the original array has been updated. */
dump_array (a, "a", "a after calling Fortran fn");
for (i = 0; i < a->dim[0].extent; i++)
{
int elt;
int j = i + a->dim[0].lower_bound;
CFI_index_t sub[1];
sub[0] = j;
elt = *((int *) CFI_address (a, sub));
if (i + 1 >= lb && i + 1 <= ub && (i + 1 - lb) % s == 0)
{
if (elt != - (i + 1))
abort ();
}
else if (elt != (i + 1))
abort ();
}
}
/* Entry points for the Fortran side. */
void
ctest1 (CFI_cdesc_t *a)
{
ctest (a, 5, 13, 2, ftest1);
}
void
ctest2 (CFI_cdesc_t *a)
{
ctest (a, 8, 20, 3, ftest2);
}
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