ยปCore Development>Code coverage>Modules/_ctypes/libffi/testsuite/libffi.call/nested_struct5.c

Python code coverage for Modules/_ctypes/libffi/testsuite/libffi.call/nested_struct5.c

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1n/a/* Area: ffi_call, closure_call
2n/a Purpose: Check structure passing with different structure size.
3n/a Contains structs as parameter of the struct itself.
4n/a Sample taken from Alan Modras patch to src/prep_cif.c.
5n/a Limitations: none.
6n/a PR: none.
7n/a Originator: <andreast@gcc.gnu.org> 20051010 */
8n/a
9n/a/* { dg-do run } */
10n/a#include "ffitest.h"
11n/a
12n/atypedef struct A {
13n/a long double a;
14n/a unsigned char b;
15n/a} A;
16n/a
17n/atypedef struct B {
18n/a struct A x;
19n/a unsigned char y;
20n/a} B;
21n/a
22n/astatic B B_fn(struct A b2, struct B b3)
23n/a{
24n/a struct B result;
25n/a
26n/a result.x.a = b2.a + b3.x.a;
27n/a result.x.b = b2.b + b3.x.b + b3.y;
28n/a result.y = b2.b + b3.x.b;
29n/a
30n/a printf("%d %d %d %d %d: %d %d %d\n", (int)b2.a, b2.b,
31n/a (int)b3.x.a, b3.x.b, b3.y,
32n/a (int)result.x.a, result.x.b, result.y);
33n/a
34n/a return result;
35n/a}
36n/a
37n/astatic void
38n/aB_gn(ffi_cif* cif __UNUSED__, void* resp, void** args,
39n/a void* userdata __UNUSED__)
40n/a{
41n/a struct A b0;
42n/a struct B b1;
43n/a
44n/a b0 = *(struct A*)(args[0]);
45n/a b1 = *(struct B*)(args[1]);
46n/a
47n/a *(B*)resp = B_fn(b0, b1);
48n/a}
49n/a
50n/aint main (void)
51n/a{
52n/a ffi_cif cif;
53n/a void *code;
54n/a ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
55n/a void* args_dbl[3];
56n/a ffi_type* cls_struct_fields[3];
57n/a ffi_type* cls_struct_fields1[3];
58n/a ffi_type cls_struct_type, cls_struct_type1;
59n/a ffi_type* dbl_arg_types[3];
60n/a
61n/a struct A e_dbl = { 1.0, 7};
62n/a struct B f_dbl = {{12.0 , 127}, 99};
63n/a
64n/a struct B res_dbl;
65n/a
66n/a cls_struct_type.size = 0;
67n/a cls_struct_type.alignment = 0;
68n/a cls_struct_type.type = FFI_TYPE_STRUCT;
69n/a cls_struct_type.elements = cls_struct_fields;
70n/a
71n/a cls_struct_type1.size = 0;
72n/a cls_struct_type1.alignment = 0;
73n/a cls_struct_type1.type = FFI_TYPE_STRUCT;
74n/a cls_struct_type1.elements = cls_struct_fields1;
75n/a
76n/a cls_struct_fields[0] = &ffi_type_longdouble;
77n/a cls_struct_fields[1] = &ffi_type_uchar;
78n/a cls_struct_fields[2] = NULL;
79n/a
80n/a cls_struct_fields1[0] = &cls_struct_type;
81n/a cls_struct_fields1[1] = &ffi_type_uchar;
82n/a cls_struct_fields1[2] = NULL;
83n/a
84n/a
85n/a dbl_arg_types[0] = &cls_struct_type;
86n/a dbl_arg_types[1] = &cls_struct_type1;
87n/a dbl_arg_types[2] = NULL;
88n/a
89n/a CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &cls_struct_type1,
90n/a dbl_arg_types) == FFI_OK);
91n/a
92n/a args_dbl[0] = &e_dbl;
93n/a args_dbl[1] = &f_dbl;
94n/a args_dbl[2] = NULL;
95n/a
96n/a ffi_call(&cif, FFI_FN(B_fn), &res_dbl, args_dbl);
97n/a /* { dg-output "1 7 12 127 99: 13 233 134" } */
98n/a CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a));
99n/a CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y));
100n/a CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b));
101n/a
102n/a
103n/a CHECK(ffi_prep_closure_loc(pcl, &cif, B_gn, NULL, code) == FFI_OK);
104n/a
105n/a res_dbl = ((B(*)(A, B))(code))(e_dbl, f_dbl);
106n/a /* { dg-output "\n1 7 12 127 99: 13 233 134" } */
107n/a CHECK( res_dbl.x.a == (e_dbl.a + f_dbl.x.a));
108n/a CHECK( res_dbl.x.b == (e_dbl.b + f_dbl.x.b + f_dbl.y));
109n/a CHECK( res_dbl.y == (e_dbl.b + f_dbl.x.b));
110n/a
111n/a exit(0);
112n/a}