/js/src/ctypes/libffi/testsuite/libffi.call/struct6.c

 1/* Area:	ffi_call
 2   Purpose:	Check structures.
 3   Limitations:	none.
 4   PR:		none.
 5   Originator:	From the original ffitest.c  */
 6
 7/* { dg-do run } */
 8#include "ffitest.h"
 9typedef struct
10{
11  float f;
12  double d;
13} test_structure_6;
14
15static test_structure_6 struct6 (test_structure_6 ts)
16{
17  ts.f += 1;
18  ts.d += 1;
19  
20  return ts;
21}
22
23int main (void)
24{
25  ffi_cif cif;
26  ffi_type *args[MAX_ARGS];
27  void *values[MAX_ARGS];
28  ffi_type ts6_type;
29  ffi_type *ts6_type_elements[3];
30  ts6_type.size = 0;
31  ts6_type.alignment = 0;
32  ts6_type.type = FFI_TYPE_STRUCT;
33  ts6_type.elements = ts6_type_elements;
34  ts6_type_elements[0] = &ffi_type_float;
35  ts6_type_elements[1] = &ffi_type_double;
36  ts6_type_elements[2] = NULL;
37
38
39  test_structure_6 ts6_arg;
40
41  /* This is a hack to get a properly aligned result buffer */
42  test_structure_6 *ts6_result = 
43    (test_structure_6 *) malloc (sizeof(test_structure_6));
44  
45  args[0] = &ts6_type;
46  values[0] = &ts6_arg;
47
48  /* Initialize the cif */
49  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, &ts6_type, args) == FFI_OK);
50  
51  ts6_arg.f = 5.55f;
52  ts6_arg.d = 6.66;
53  
54  printf ("%g\n", ts6_arg.f);
55  printf ("%g\n", ts6_arg.d);
56
57  ffi_call(&cif, FFI_FN(struct6), ts6_result, values);
58    
59  CHECK(ts6_result->f == 5.55f + 1);
60  CHECK(ts6_result->d == 6.66 + 1);
61    
62  free (ts6_result);
63  exit(0);
64}