Viewing file:  struct7.c (1.56 KB) -rw-rw-r--
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/* Area: ffi_call
Purpose: Check structures.
Limitations: none.
PR: none.
Originator: From the original ffitest.c */
/* { dg-do run } */
#include "ffitest.h"
typedef struct
{
float f1;
float f2;
double d;
} test_structure_7;
static test_structure_7 ABI_ATTR struct7 (test_structure_7 ts)
{
ts.f1 += 1;
ts.f2 += 1;
ts.d += 1;
return ts;
}
int main (void)
{
ffi_cif cif;
ffi_type *args[MAX_ARGS];
void *values[MAX_ARGS];
ffi_type ts7_type;
ffi_type *ts7_type_elements[4];
test_structure_7 ts7_arg;
/* This is a hack to get a properly aligned result buffer */
test_structure_7 *ts7_result =
(test_structure_7 *) malloc (sizeof(test_structure_7));
ts7_type.size = 0;
ts7_type.alignment = 0;
ts7_type.type = FFI_TYPE_STRUCT;
ts7_type.elements = ts7_type_elements;
ts7_type_elements[0] = &ffi_type_float;
ts7_type_elements[1] = &ffi_type_float;
ts7_type_elements[2] = &ffi_type_double;
ts7_type_elements[3] = NULL;
args[0] = &ts7_type;
values[0] = &ts7_arg;
/* Initialize the cif */
CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, &ts7_type, args) == FFI_OK);
ts7_arg.f1 = 5.55f;
ts7_arg.f2 = 55.5f;
ts7_arg.d = 6.66;
printf ("%g\n", ts7_arg.f1);
printf ("%g\n", ts7_arg.f2);
printf ("%g\n", ts7_arg.d);
ffi_call(&cif, FFI_FN(struct7), ts7_result, values);
printf ("%g\n", ts7_result->f1);
printf ("%g\n", ts7_result->f2);
printf ("%g\n", ts7_result->d);
CHECK(ts7_result->f1 == 5.55f + 1);
CHECK(ts7_result->f2 == 55.5f + 1);
CHECK(ts7_result->d == 6.66 + 1);
free (ts7_result);
exit(0);
}
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