void f(int=0) ;
int main() {
f(); // ok
(*f)(2);// ok
(*f)();// ok c++11; error with c++14: too few arguments to function
return 0;
}
void f(int){}
dm9pZCBmKGludD0wKSA7CgppbnQgbWFpbigpIHsKICAgIGYoKTsgLy8gb2sKICAgICgqZikoMik7Ly8gb2sKICAgICgqZikoKTsvLyBvayBjKysxMTsgZXJyb3Igd2l0aCBjKysxNDogdG9vIGZldyBhcmd1bWVudHMgdG8gZnVuY3Rpb24KICAgIHJldHVybiAwOwp9Cgp2b2lkIGYoaW50KXt9