未定義的引用？

Question

我正在用C ++為骰子傻瓜游戲編寫代碼，但是我一直遇到錯誤代碼“對'cootieComplete（int）'的未定義引用”，我不確定如何解決它。 任務是創建一個傻瓜游戲，在其中擲骰子，然后應用它以將不同的身體部位添加到該傻瓜中。

這是我的代碼。

#include <iostream>
#include <cstdlib>
#include <time.h>

using namespace std;
int rolldice();
int applyroll(int);
bool cootieComplete(int);
void printCootie(int);

        int numBody=0;
        int numHead=0;
        int numAntenna=0;
        int numWings=0;
        int numTongue=0;
        int numLeg=0;

int main(int argc, char *argv[])
{
   int diceroll;
   int apply;
   srand(time(0));
   do {
   diceroll = rolldice();
   apply = applyroll(diceroll);
   printCootie(diceroll);
   }
   while (!cootieComplete(apply)) ;


    system("PAUSE");
    return EXIT_SUCCESS;
}

     int rolldice()
 {
     int diceroll = rand() % 6 + 1;
     return diceroll;
}

    int applyroll(int diceroll){

                   if (diceroll == 1)
                   {
                    numBody++;
                   }

                   if (diceroll == 2 && numBody >= 1)
                   {
                    numHead++;
                   }

                   if (diceroll == 3 && numHead >=1)
                   {
                    numAntenna++;
                   }

                   if (diceroll == 4 && numBody >= 1)
                   {
                    numWings++;
                   }

                   if (diceroll == 5 && numHead >= 1)
                   {
                    numTongue++;
                   }

                   if (diceroll == 6 && numBody >= 1)
                   {
                    numLeg++;
                   }
            return diceroll;
            }

     bool cootieComplete(int numBody,int numHead,int numAntenna,int numWings,int numTongue,int numLeg) {
         if (numBody>0&&numHead>0&&numAntenna>1&&numWings>1&&numTongue!=0&&numLeg>=4) {
             return true;
          }
         else {
               return false;
          }
    }

    void printCootie(int diceroll){

                   if (diceroll == 1)
                   {
                    cout << "Body Added!" << endl;
                    cout << "There are " << numBody << " body, " << numHead << " head, " << numAntenna << " antenna, " << numWings << " wings, " << numTongue << " tongues, " << numLeg << " legs." << endl;
                   }

                   if (diceroll == 2 && numBody >= 1)
                   {
                    cout << "Head Added!" << endl;
                    cout << "There are " << numBody << " body, " << numHead << " head, " << numAntenna << " antenna, " << numWings << " wings, " << numTongue << " tongues, " << numLeg << " legs." << endl;
                   }
                   else if (diceroll == 2)
                   {
                    cout <<"No body, you can't add head!";
                   }

                   if (diceroll == 3 && numHead >=1)
                   {
                    cout << "Antenna Added!"<<endl;
                    cout << "There are " << numBody << " body, " << numHead << " head, " << numAntenna << " antenna, " << numWings << " wings, " << numTongue << " tongues, " << numLeg << " legs." << endl;
                   }
                   else if (diceroll == 3)
                   {
                    cout << "No head, you can't add antenna!";
                   }

                   if (diceroll == 4 && numBody >= 1)
                   {
                    cout<<"Wing Added!" << endl;
                    cout << "There are " << numBody << " body, " << numHead << " head, " << numAntenna << " antenna, " << numWings << " wings, " << numTongue << " tongues, " << numLeg << " legs." << endl;
                   }
                   else if (diceroll == 4)
                   {
                    cout << "No body, you can't add wings!";
                   }

                   if (diceroll == 5 && numHead >= 1)
                   {
                    cout<<"Tongue Added!" << endl;
                    cout << "There are " << numBody << " body, " << numHead << " head, " << numAntenna << " antenna, " << numWings << " wings, " << numTongue << " tongues, " << numLeg << " legs." << endl;
                   }
                   else if (diceroll == 5)
                   {
                    cout << "No head, you can't add tongue!";
                   }

                   if (diceroll == 6 && numBody >= 1)
                   {
                    cout<<"Leg Added!" << endl;
                    cout << "There are " << numBody << " body, " << numHead << " head, " << numAntenna << " antenna, " << numWings << " wings, " << numTongue << " tongues, " << numLeg << " legs." << endl;
                   }
                   else if (diceroll == 6)
                   {
                    cout << "No body, you can't add legs";
                   }

     }

Answer 1

您將cootieComplete 聲明為1 int，並將其定義為6，然后調用版本1。

// Declaration
bool cootieComplete(int);

...

while (!cootieComplete(apply))

....

// Definition
bool cootieComplete(int numBody,int numHead,int numAntenna,int numWings,int numTongue,int numLeg)

由於您以1 int作為參數調用了該版本，因此編譯器正在尋找cootieComplete(int)的定義，但找不到它，因此會引發undefined reference錯誤。

他們需要匹配。 因此，如下定義：

bool cootieComplete(int, int, int, int, int, int);

Answer 2

如果您需要它們，Eric是正確的。 使它們看起來像

bool cootieComplete(int, int, int, int, int, int);

bool cootieComplete(int numBody,int numHead,int numAntenna,int numWings,int numTongue,int numLeg){
  // Code here
}

那應該解決你的錯誤