Ruby 2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)

struct6.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 f;
12 double d;
13 } test_structure_6;
14
15 static test_structure_6 ABI_ATTR struct6 (test_structure_6 ts)
16 {
17 ts.f += 1;
18 ts.d += 1;
19
20 return ts;
21 }
22
23 int 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
31 test_structure_6 ts6_arg;
32
33 /* This is a hack to get a properly aligned result buffer */
34 test_structure_6 *ts6_result =
35 (test_structure_6 *) malloc (sizeof(test_structure_6));
36
37 ts6_type.size = 0;
38 ts6_type.alignment = 0;
39 ts6_type.type = FFI_TYPE_STRUCT;
40 ts6_type.elements = ts6_type_elements;
41 ts6_type_elements[0] = &ffi_type_float;
42 ts6_type_elements[1] = &ffi_type_double;
43 ts6_type_elements[2] = NULL;
44
45 args[0] = &ts6_type;
46 values[0] = &ts6_arg;
47
48 /* Initialize the cif */
49 CHECK(ffi_prep_cif(&cif, ABI_NUM, 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 }
test_structure_6::d
double d
Definition: struct6.c:12
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__))
test_structure_6::f
float f
Definition: struct6.c:11
ffitest.h
CHECK
#define CHECK(sub)
Definition: compile.c:448
main
int main(void)
Definition: struct6.c:23
ABI_ATTR
#define ABI_ATTR
Definition: ffitest.h:36
test_structure_6
Definition: struct6.c:9
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
MAX_ARGS
#define MAX_ARGS
Definition: function.c:15
free
#define free(x)
Definition: dln.c:52
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813