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#include <ccan/typesafe_cb/typesafe_cb.h>
#include <stdlib.h>
void _callback(void (*fn)(void *arg), void *arg);
void _callback(void (*fn)(void *arg), void *arg)
{
fn(arg);
}
/* Callback is set up to warn if arg isn't a pointer (since it won't
* pass cleanly to _callback's second arg. */
#define callback(fn, arg) \
_callback(typesafe_cb(void, (fn), (arg)), (arg))
void my_callback(int something);
void my_callback(int something)
{
}
int main(int argc, char *argv[])
{
#ifdef FAIL
/* This fails due to arg, not due to cast. */
callback(my_callback, 100);
#endif
return 0;
}
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