Ruby 2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)

struct9.c
Go to the documentation of this file.
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
10 typedef struct
11 {
12 float f;
13 int i;
14 } test_structure_9;
15
16 static test_structure_9 ABI_ATTR struct9 (test_structure_9 ts)
17 {
18 ts.f += 1;
19 ts.i += 1;
20
21 return ts;
22 }
23
24 int main (void)
25 {
26 ffi_cif cif;
27 ffi_type *args[MAX_ARGS];
28 void *values[MAX_ARGS];
29 ffi_type ts9_type;
30 ffi_type *ts9_type_elements[3];
31
32 test_structure_9 ts9_arg;
33
34 /* This is a hack to get a properly aligned result buffer */
35 test_structure_9 *ts9_result =
36 (test_structure_9 *) malloc (sizeof(test_structure_9));
37
38 ts9_type.size = 0;
39 ts9_type.alignment = 0;
40 ts9_type.type = FFI_TYPE_STRUCT;
41 ts9_type.elements = ts9_type_elements;
42 ts9_type_elements[0] = &ffi_type_float;
43 ts9_type_elements[1] = &ffi_type_sint;
44 ts9_type_elements[2] = NULL;
45
46 args[0] = &ts9_type;
47 values[0] = &ts9_arg;
48
49 /* Initialize the cif */
50 CHECK(ffi_prep_cif(&cif, ABI_NUM, 1, &ts9_type, args) == FFI_OK);
51
52 ts9_arg.f = 5.55f;
53 ts9_arg.i = 5;
54
55 printf ("%g\n", ts9_arg.f);
56 printf ("%d\n", ts9_arg.i);
57
58 ffi_call(&cif, FFI_FN(struct9), ts9_result, values);
59
60 printf ("%g\n", ts9_result->f);
61 printf ("%d\n", ts9_result->i);
62
63 CHECK(ts9_result->f == 5.55f + 1);
64 CHECK(ts9_result->i == 5 + 1);
65
66 free (ts9_result);
67 exit(0);
68 }
malloc
void * malloc(size_t) __attribute__((__malloc__)) __attribute__((__warn_unused_result__)) __attribute__((__alloc_size__(1)))
ABI_NUM
#define ABI_NUM
Definition: ffitest.h:35
printf
int int int printf(const char *__restrict,...) __attribute__((__format__(__printf__
NULL
#define NULL
Definition: _sdbm.c:101
exit
void exit(int __status) __attribute__((__noreturn__))
ffitest.h
CHECK
#define CHECK(sub)
Definition: compile.c:448
ABI_ATTR
#define ABI_ATTR
Definition: ffitest.h:36
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
test_structure_9::f
float f
Definition: struct9.c:12
MAX_ARGS
#define MAX_ARGS
Definition: function.c:15
main
int main(void)
Definition: struct9.c:24
free
#define free(x)
Definition: dln.c:52
test_structure_9
Definition: struct9.c:10
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
test_structure_9::i
int i
Definition: struct9.c:13