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Linker Error when program is run (Urgent help required Please")

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Join Date: Jun 2005

Posts: 20

Reputation: nike123 is an unknown quantity at this point

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nike123

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Newbie Poster

Linker Error when program is run (Urgent help required Please")

Jun 6th, 2005

I have copied this program from this site, and simply copied as a new C++ file
but when run I got a number of error. so I included Myheader file which amongs other includes, the iostream.h, and stlib.h, that is why they have been commented out below. Any way doing this I have then run the program, and got a syntax error so I commented out line six as well, as shown below, but then still couldn't get the program to run, I keep getting this error

Linker error: undefined sysmbol_system in module game1.cpp
"game1 is what have named the program"

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
#include"myheader.h"
#include<iostream.h>
#include<time.h>
#include<stdlib.h>
#include<windows.h>
//using namespace std;
void one();
void two();
void three();
void four();
void five();
void six();
//Declare Functions used
int main()
{
   short unsigned int score = 0;
   short unsigned int compScore = 0;
   short unsigned int num = 0;
   short unsigned int num2 = 0;
   short unsigned int compNum = 0;
   short unsigned int compNum2 = 0;
   short unsigned int sum = 0;
   short unsigned int compSum = 0;
   char letter='j';
//Declare Variables
   srand(time(NULL));
//Initialize random number generator
   system("title Joe's Dice Game");
   while ( letter != 'q' )
   {
      cout << "Your Score: " << score << endl;
      cout << "computer's Score: " << compScore << endl << endl;
      cout << "Press r to roll or q to quit: ";
      cin >> letter;
      num = 1 + rand() % (6 - 1 + 1);
      num2 = 1 + rand() % (6 - 1 + 1);
      compNum = 1 + rand() % (6 - 1 + 1);
      compNum2 = 1 + rand() % (6 - 1 + 1);
 
//Random numbers
 
      sum = num + num2;
      compSum = compNum + compNum2;
 
//Calculate Sums
 
      if ( letter == 'q' )
         break;
      if ( letter != 'r' )
      {
         system("cls");
         continue;
      }
 
      switch ( num )
      {
      case 1:
         one();
         break;
      case 2:
         two();
         break;
      case 3:
         three();
         break;
      case 4:
         four();
         break;
      case 5:
         five();
         break;
      case 6:
         six();
         break;
      default:
         cout << "Error...";
         break;
      } //end switch
 
      switch ( num2 )
      {
      case 1:
         one();
         break;
      case 2:
         two();
         break;
      case 3:
         three();
         break;
      case 4:
         four();
         break;
      case 5:
         five();
         break;
      case 6:
         six();
         break;
      default:
         cout << "Error...";
         break;
      } //end switch
 
      cout << endl << "Yours: " << num << ", " << num2 << endl;
      cout << "Computer's: " << compNum << ", " << compNum2 << "\n\n";
 
//Display dice and numbers
 
      if ( sum > compSum )
      {
         cout << "You won!!" << endl << endl;
         score++;
      }
      else
      {
         compScore++;
         cout << "you lost..." << endl << endl;
      }
 
//Calculate score
 
      system("pause");
      system("cls");
 
      if ( score == 12 )
      {
         MessageBox(0, "You Won!!!", "Results:", MB_ICONEXCLAMATION);
         break;
      }
      if ( compScore == 12 )
      {
         MessageBox(0, "You lost...", "Results:", MB_ICONEXCLAMATION);
         break; 
      }
   }
   return 0;
}
 
void one()
{
   cout << " -----" << endl;
   cout << "| |" << endl;
   cout << "| O |" << endl;
   cout << "| |" << endl;
   cout << " -----" << endl;
}
void two()
{
   cout << " -----" << endl;
   cout << "| O|" << endl;
   cout << "| |" << endl;
   cout << "|O |" << endl;
   cout << " -----" << endl;
}
void three()
{
   cout << " -----" << endl;
   cout << "| O|" << endl;
   cout << "| O |" << endl;
   cout << "|O |" << endl;
   cout << " -----" << endl;
}
void four()
{
   cout << " -----" << endl;
   cout << "|O O|" << endl;
   cout << "| |" << endl;
   cout << "|O O|" << endl;
   cout << " -----" << endl;
}
void five()
{
   cout << " -----" << endl;
   cout << "|O O|" << endl;
   cout << "| O |" << endl;
   cout << "|O O|" << endl;
   cout << " -----" << endl;
}
void six()
{
   cout << " -----" << endl;
   cout << "|O O|" << endl;
   cout << "|O O|" << endl;
   cout << "|O O|" << endl;
   cout << " -----" << endl;
}
#include"myheader.h"
#include<iostream.h>
#include<time.h>
#include<stdlib.h>
#include<windows.h>
//using namespace std;
void one();
void two();
void three();
void four();
void five();
void six();
//Declare Functions used
int main()
{
   short unsigned int score = 0;
   short unsigned int compScore = 0;
   short unsigned int num = 0;
   short unsigned int num2 = 0;
   short unsigned int compNum = 0;
   short unsigned int compNum2 = 0;
   short unsigned int sum = 0;
   short unsigned int compSum = 0;
   char letter='j';
//Declare Variables
   srand(time(NULL));
//Initialize random number generator
   system("title Joe's Dice Game");
   while ( letter != 'q' )
   {
      cout << "Your Score: " << score << endl;
      cout << "computer's Score: " << compScore << endl << endl;
      cout << "Press r to roll or q to quit: ";
      cin >> letter;
      num = 1 + rand() % (6 - 1 + 1);
      num2 = 1 + rand() % (6 - 1 + 1);
      compNum = 1 + rand() % (6 - 1 + 1);
      compNum2 = 1 + rand() % (6 - 1 + 1);

//Random numbers

      sum = num + num2;
      compSum = compNum + compNum2;

//Calculate Sums

      if ( letter == 'q' )
         break;
      if ( letter != 'r' )
      {
         system("cls");
         continue;
      }

      switch ( num )
      {
      case 1:
         one();
         break;
      case 2:
         two();
         break;
      case 3:
         three();
         break;
      case 4:
         four();
         break;
      case 5:
         five();
         break;
      case 6:
         six();
         break;
      default:
         cout << "Error...";
         break;
      } //end switch

      switch ( num2 )
      {
      case 1:
         one();
         break;
      case 2:
         two();
         break;
      case 3:
         three();
         break;
      case 4:
         four();
         break;
      case 5:
         five();
         break;
      case 6:
         six();
         break;
      default:
         cout << "Error...";
         break;
      } //end switch

      cout << endl << "Yours: " << num << ", " << num2 << endl;
      cout << "Computer's: " << compNum << ", " << compNum2 << "\n\n";

//Display dice and numbers

      if ( sum > compSum )
      {
         cout << "You won!!" << endl << endl;
         score++;
      }
      else
      {
         compScore++;
         cout << "you lost..." << endl << endl;
      }

//Calculate score

      system("pause");
      system("cls");

      if ( score == 12 )
      {
         MessageBox(0, "You Won!!!", "Results:", MB_ICONEXCLAMATION);
         break;
      }
      if ( compScore == 12 )
      {
         MessageBox(0, "You lost...", "Results:", MB_ICONEXCLAMATION);
         break; 
      }
   }
   return 0;
}

void one()
{
   cout << " -----" << endl;
   cout << "| |" << endl;
   cout << "| O |" << endl;
   cout << "| |" << endl;
   cout << " -----" << endl;
}
void two()
{
   cout << " -----" << endl;
   cout << "| O|" << endl;
   cout << "| |" << endl;
   cout << "|O |" << endl;
   cout << " -----" << endl;
}
void three()
{
   cout << " -----" << endl;
   cout << "| O|" << endl;
   cout << "| O |" << endl;
   cout << "|O |" << endl;
   cout << " -----" << endl;
}
void four()
{
   cout << " -----" << endl;
   cout << "|O O|" << endl;
   cout << "| |" << endl;
   cout << "|O O|" << endl;
   cout << " -----" << endl;
}
void five()
{
   cout << " -----" << endl;
   cout << "|O O|" << endl;
   cout << "| O |" << endl;
   cout << "|O O|" << endl;
   cout << " -----" << endl;
}
void six()
{
   cout << " -----" << endl;
   cout << "|O O|" << endl;
   cout << "|O O|" << endl;
   cout << "|O O|" << endl;
   cout << " -----" << endl;
}

<< moderator edit: added [code][/code] tags and indenting >>

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Join Date: May 2005

Posts: 232

Reputation: Dogtree is an unknown quantity at this point

Solved Threads: 3

Dogtree

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Posting Whiz in Training

Re: Linker Error when program is run (Urgent help required Please")

Jun 6th, 2005

Is that the exact error or your rendition of the error?

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Join Date: May 2005

Posts: 48

Reputation: amt_muk is an unknown quantity at this point

Solved Threads: 3

amt_muk

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Light Poster

Re: Linker Error when program is run (Urgent help required Please")

Jun 7th, 2005

I think you should comment out the first line.

Help with Code Tags

(Toggle Plain Text)

//#include"myheader.h"
#include<iostream.h>
#include<time.h>
#include<stdlib.h>
#include<windows.h>
...

•

Join Date: Jun 2005

Posts: 20

Reputation: nike123 is an unknown quantity at this point

Solved Threads: 0

nike123

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Newbie Poster

Re: Linker Error when program is run (Urgent help required Please")

Jun 7th, 2005

yes that's exactly the error have got.

once i comment the first line, I get loads more errors.

Am guessing maybe that game is rather a C++ project, but i have tried creating it as a project but still no success. Uhh I don't know

can smeone please try and copy the game from http://www.daniweb.com/techtalkforums/thread5123.html
and see if you can get it to work.

Thank you