Ruby  2.4.2p198(2017-09-14revision59899)
struct8.c
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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"
9 typedef struct
10 {
11  float f1;
12  float f2;
13  float f3;
14  float f4;
16 
18 {
19  ts.f1 += 1;
20  ts.f2 += 1;
21  ts.f3 += 1;
22  ts.f4 += 1;
23 
24  return ts;
25 }
26 
27 int main (void)
28 {
29  ffi_cif cif;
30  ffi_type *args[MAX_ARGS];
31  void *values[MAX_ARGS];
32  ffi_type ts8_type;
33  ffi_type *ts8_type_elements[5];
34 
35  test_structure_8 ts8_arg;
36 
37  /* This is a hack to get a properly aligned result buffer */
38  test_structure_8 *ts8_result =
40 
41  ts8_type.size = 0;
42  ts8_type.alignment = 0;
43  ts8_type.type = FFI_TYPE_STRUCT;
44  ts8_type.elements = ts8_type_elements;
45  ts8_type_elements[0] = &ffi_type_float;
46  ts8_type_elements[1] = &ffi_type_float;
47  ts8_type_elements[2] = &ffi_type_float;
48  ts8_type_elements[3] = &ffi_type_float;
49  ts8_type_elements[4] = NULL;
50 
51  args[0] = &ts8_type;
52  values[0] = &ts8_arg;
53 
54  /* Initialize the cif */
55  CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, &ts8_type, args) == FFI_OK);
56 
57  ts8_arg.f1 = 5.55f;
58  ts8_arg.f2 = 55.5f;
59  ts8_arg.f3 = -5.55f;
60  ts8_arg.f4 = -55.5f;
61 
62  printf ("%g\n", ts8_arg.f1);
63  printf ("%g\n", ts8_arg.f2);
64  printf ("%g\n", ts8_arg.f3);
65  printf ("%g\n", ts8_arg.f4);
66 
67  ffi_call(&cif, FFI_FN(struct8), ts8_result, values);
68 
69  printf ("%g\n", ts8_result->f1);
70  printf ("%g\n", ts8_result->f2);
71  printf ("%g\n", ts8_result->f3);
72  printf ("%g\n", ts8_result->f4);
73 
74  CHECK(ts8_result->f1 == 5.55f + 1);
75  CHECK(ts8_result->f2 == 55.5f + 1);
76  CHECK(ts8_result->f3 == -5.55f + 1);
77  CHECK(ts8_result->f4 == -55.5f + 1);
78 
79  free (ts8_result);
80  exit(0);
81 }
int main(void)
Definition: struct8.c:27
#define ABI_NUM
Definition: ffitest.h:35
#define ABI_ATTR
Definition: ffitest.h:36
#define malloc
Definition: ripper.c:116
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
#define MAX_ARGS
Definition: function.c:15
#define CHECK(sub)
Definition: compile.c:408
#define NULL
Definition: _sdbm.c:102
free(psz)
static test_structure_8 ABI_ATTR struct8(test_structure_8 ts)
Definition: struct8.c:17
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes)
Definition: prep_cif.c:226