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#include <ccan/typesafe_cb/typesafe_cb.h>
#include <stdlib.h>
static void _register_callback(void (*cb)(void *arg), const void *arg)
{
}
#define register_callback(cb, arg) \
_register_callback(typesafe_cb_exact(void, (cb), (arg)), (arg))
static void my_callback(const char *p)
{
}
int main(int argc, char *argv[])
{
#ifdef FAIL
char *p;
#if !HAVE_TYPEOF||!HAVE_BUILTIN_CHOOSE_EXPR||!HAVE_BUILTIN_TYPES_COMPATIBLE_P
#error "Unfortunately we don't fail if cast_if_type is a noop."
#endif
#else
const char *p;
#endif
p = NULL;
/* This should work always. */
register_callback(my_callback, (const char *)"hello world");
/* This will fail with FAIL defined */
register_callback(my_callback, p);
return 0;
}
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