程序無法正常工作的解決方案

Question

我的程序有問題。我的代碼可以運行，但導致它停止工作。我已經多次查看了該程序，但是看不到問題所在。感謝任何幫助我的人。真的很感激。

#include <iostream> 
#include <string> 

using namespace std; 

double getdiscount(int customer_city, double gal_last) 

{ 
    getdiscount(customer_city, gal_last); 
    return 0; 
} 


int main() 
{ 
    int customer_city ; 
    double gal_last, gal_bought, price_per_gal, discount, tot_cost; 

    cout << " The number of gallon being purchased in gal: " << endl; 
    cin >> gal_bought; 

    cout << " The price per gallon you bought : "<<"RM"; 
    cin >> price_per_gal; 

    cout<<" Enter customer city : "<<endl; 
    cin>>customer_city; 

    cout<<" Number of gallons of oil used last year : " <<endl; 
    cin>>gal_last; 

    switch (customer_city) 

    { 
    case 1: 
     (customer_city == 1); 
     if (gal_last>=1000) 
      discount = 0.9; 
     else 
      discount = 1; 
     break; 

    case 2: 
     (customer_city == 2); 
     (gal_last >=1200); 
     discount = 0.9; 
     break; 

    default: 
     if (gal_last >=1500) 
      discount = 0.9; 

     cout<< " Discount rate is : "<<discount<<endl; 
    } 

    tot_cost = gal_bought* (price_per_gal*getdiscount(customer_city, gal_last)); 

    cout<< " The total cost : "<<tot_cost<<endl; 

    return 0; 
} //end main function 

Answer 1

這是遞歸調用本身......

double getdiscount(int customer_city, double gal_last) 

{ 
    getdiscount(customer_city, gal_last); 
    return 0; 
} 

，直到你得到一個計算器...