]> git.ozlabs.org Git - ccan/blob - ccan/typesafe_cb/test/compile_ok-typesafe_cb-volatile.c
typesafe_cb: fix promotable types being incorrectly accepted by cast_if_type.
[ccan] / ccan / typesafe_cb / test / compile_ok-typesafe_cb-volatile.c
1 #include <ccan/typesafe_cb/typesafe_cb.h>
2 #include <stdlib.h>
3
4 /* volatile args in callbacks should be OK. */
5
6 static void _register_callback(void (*cb)(void *arg), void *arg)
7 {
8 }
9
10 #define register_callback(cb, arg)                              \
11         _register_callback(typesafe_cb(void, (cb), (arg)), (arg))
12
13 static void _register_callback_pre(void (*cb)(int x, void *arg), void *arg)
14 {
15 }
16
17 #define register_callback_pre(cb, arg)                                  \
18         _register_callback_pre(typesafe_cb_preargs(void, (cb), (arg), int), (arg))
19
20 static void _register_callback_post(void (*cb)(void *arg, int x), void *arg)
21 {
22 }
23
24 #define register_callback_post(cb, arg)                                 \
25         _register_callback_post(typesafe_cb_postargs(void, (cb), (arg), int), (arg))
26
27 static void my_callback(volatile char *p)
28 {
29 }
30
31 /* FIXME: Can't handle volatile for these */
32 static void my_callback_pre(int x, /* volatile */ char *p)
33 {
34 }
35
36 static void my_callback_post(/* volatile */ char *p, int x)
37 {
38 }
39
40 int main(int argc, char *argv[])
41 {
42         register_callback(my_callback, "hello world");
43         register_callback_pre(my_callback_pre, "hello world");
44         register_callback_post(my_callback_post, "hello world");
45         return 0;
46 }