1cb93a386Sopenharmony_ci// Expect 1 error 2cb93a386Sopenharmony_ci 3cb93a386Sopenharmony_ci// Straightforward mutual recursion (not allowed) 4cb93a386Sopenharmony_cibool is_even(int n); 5cb93a386Sopenharmony_cibool is_odd (int n) { return n == 0 ? false : is_even(n - 1); } 6cb93a386Sopenharmony_cibool is_even(int n) { return n == 0 ? true : is_odd (n - 1); } 7