C++ Goto语句

#include <iostream>
using namespace std;
int main()
{
      ineligible:  
      cout<<"You are not eligible to vote!\n";  
      cout<<"Enter your age:\n";  
      int age;
      cin>>age;
      if (age < 18){  
          goto ineligible;  
      }  
      else  
      {  
          cout<<"You are eligible to vote!";   
      }       
}