Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/struct7.c Source File

Ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c52d4d35cc6a173c89eda98ceffa2dcf)

struct7.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 double d;
14} test_structure_7;
15
16static test_structure_7 ABI_ATTR struct7 (test_structure_7 ts)
17{
18 ts.f1 += 1;
19 ts.f2 += 1;
20 ts.d += 1;
21
22 return ts;
23}
24
25 int main (void)
26{
27 ffi_cif cif;
28 ffi_type *args[MAX_ARGS];
29 void *values[MAX_ARGS];
30 ffi_type ts7_type;
31 ffi_type *ts7_type_elements[4];
32
33 test_structure_7 ts7_arg;
34
35 /* This is a hack to get a properly aligned result buffer */
36 test_structure_7 *ts7_result =
37 (test_structure_7 *) malloc (sizeof(test_structure_7));
38
39 ts7_type.size = 0;
40 ts7_type.alignment = 0;
41 ts7_type.type = FFI_TYPE_STRUCT;
42 ts7_type.elements = ts7_type_elements;
43 ts7_type_elements[0] = &ffi_type_float;
44 ts7_type_elements[1] = &ffi_type_float;
45 ts7_type_elements[2] = &ffi_type_double;
46 ts7_type_elements[3] = NULL;
47
48 args[0] = &ts7_type;
49 values[0] = &ts7_arg;
50
51 /* Initialize the cif */
52 CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, &ts7_type, args) == FFI_OK);
53
54 ts7_arg.f1 = 5.55f;
55 ts7_arg.f2 = 55.5f;
56 ts7_arg.d = 6.66;
57
58 printf ("%g\n", ts7_arg.f1);
59 printf ("%g\n", ts7_arg.f2);
60 printf ("%g\n", ts7_arg.d);
61
62 ffi_call(&cif, FFI_FN(struct7), ts7_result, values);
63
64 printf ("%g\n", ts7_result->f1);
65 printf ("%g\n", ts7_result->f2);
66 printf ("%g\n", ts7_result->d);
67
68 CHECK(ts7_result->f1 == 5.55f + 1);
69 CHECK(ts7_result->f2 == 55.5f + 1);
70 CHECK(ts7_result->d == 6.66 + 1);
71
72 free (ts7_result);
73 exit(0);
74}
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
CHECK
#define CHECK(sub)
Definition: compile.c:429
free
#define free(x)
Definition: dln.c:52
ffitest.h
ABI_NUM
#define ABI_NUM
Definition: ffitest.h:35
ABI_ATTR
#define ABI_ATTR
Definition: ffitest.h:36
MAX_ARGS
#define MAX_ARGS
Definition: function.c:17
ffi_prep_cif
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
NULL
#define NULL
Definition: regenc.h:69
malloc
#define malloc
Definition: st.c:170
main
int main(void)
Definition: struct7.c:25
test_structure_7
Definition: struct7.c:10
test_structure_7::f2
float f2
Definition: struct7.c:12
test_structure_7::d
double d
Definition: struct7.c:13
test_structure_7::f1
float f1
Definition: struct7.c:11