code hoge()
{
    goto hoge(); // ok
}

int
f()
{
    return 1;
}

code hoga(int i)
{
    f();   // ok
    h();   // ok h() is a function
    if (i)
	goto f();  // bad
    else
	goto g(i);  // ok g() is a code segement
}

int
g(int i)
{                     // g is already used as code bad
    k();
    if (i) 
	goto h();    // bad
    // should complain.... no return value
}

code k()    
{                    // bad k is already used as function
    goto hoge();       // ok
}

int
main()
{
    hoge();    // bad
}