ich würde gerne in mein selbstgeschriebenen Code "Pointers" einfügen. Könnt Ihr mir sagen wo ich diese am besten einfügen kann.

#include <iostream>

#include <iomanip>// Allows user to set precision

#include <string>

using namespace std;

struct conversion //Groups conversion information

       {       
        double Dollar;

        double rate;

	    string totalCalc;

        string description;

       } currency[5];

void initVariables();

void displayMenu();

void displayResults();

int main()

    {

      bool hasInputFailed;    

      char cont;

      bool docont = true;

           do

             {     

               //Initialize structures and arrays

               initVariables();

               system("CLS");     //clears the screen

               displayMenu();

               displayResults();

               do  //Testing character input

                 {

                  hasInputFailed = false;

                  cout << "\n\nWould you like to continue? (y/n)\n";

                  cin >> cont;

                      if ( (tolower(cont) != 'n'&& tolower(cont) != 'y') || cin.fail() )

                         {

                          cin.clear();

                          cin.ignore(100,'\n');

                          cout << "Invalid response, try again:\n";

                          hasInputFailed = true;

                         }

                       if (tolower(cont) == 'n')

                          {

                           docont = false;

                          }

                      else

                          {

                           docont = true;

                          }

                 }while ( hasInputFailed == true);

             }

             while (docont == true);

return 0;

    }//End of main

void initVariables()

     {
      currency[0].description = " Euros = 0.762953 ";//Display of International rates to a US Dollar
	  currency[0].rate = 0.762953;                   //From http://www.xe.com/ucc/full.shtml
      currency[0].totalCalc = "Euros"; //For total calculation display
	  currency[0].Dollar = 0.0;

      currency[1].description = " Swiss Francs = 1.17806 ";
	  currency[1].rate = 1.17806;
      currency[1].totalCalc = "Swiss Francs";
	  currency[1].Dollar = 0.0;

      currency[2].description = " British Pounds = 0.534387 ";
	  currency[2].rate = 0.534387;
      currency[2].totalCalc = "British Pounds";
	  currency[2].Dollar = 0.0;

	  currency[3].description = " Japanese Yens = 101.882 ";
	  currency[3].rate = 101.882;
      currency[3].totalCalc = "Japanese Yens";
	  currency[3].Dollar = 0.0;

      currency[4].description = " Russian Rubles = 27.9400 ";
	  currency[4].rate = 27.9400;
      currency[4].totalCalc = "Russian Rubles";
	  currency[4].Dollar = 0.0;
     }

void displayMenu()

     {

      int question;

      double amount;

      bool alreadySelected;

      bool currencySelected[5]; //Keeps track of selections

           for (int i=0; i < 5; i++)

               {

                currencySelected[i] = false;

               }

               do

                 {

                  system("CLS"); //clears the screen

                               /* Title of Program */

				  cout << "\t\t***************************\n";

				  cout << "\t\tCurrency Conversion Program\n";

				  cout << "\t\t***************************\n\n";

				  cout << " International rates to 1 US Dollar as of January 17, 2005\n\n";

				  cout << "Please choose a foreign currency (1-5)" << endl;//Prompt user for selection

				  cout << "or press 0 when done or wishing to exit:" << endl << endl;

                  for (int i=0; i < 5; i++)

                      {

                       cout << "\t" << i+1 << ". " << currency[i].description << endl;

                      }

                  cout << "\t0.  Done/Exit" << endl;

                  cin >> question; //Reads user's input

                  //check for errors

                      if (cin.fail() || question < 0 || question > 5)

                         {

                          cin.clear();//Reseting input to allow new input

                          cin.ignore(100,'\n');//Removes bad data up to 100 characters

                          cout << "\nYou entered an invalid selection, please try again." << endl;

                          continue; //back to the beginning of the loop

                         }

                     else if (question == 0)

                             {

                              break;

                             }

            //check if currency has been already selected, if not select it

              alreadySelected = false;

                     for (i=0; i < 5; i++)

                         {

                          if (question - 1 == i)

                              {

                             if ( currencySelected[i] ) // if it was already selected

                                {

                                 cout << "\nThis type of currency has been selected already" << endl;

                                 alreadySelected = true;

                                }

                            else //was not selected before

                                {

                                 currencySelected[i] = true;

                                }

                              }

                         }

                     if (alreadySelected == true)

                        {

                         continue;

                        }

                        //Prompt user for Dollar amount(s)

			        cout << "\n\t\tPlease enter amount of US Dollars to convert:" << endl;

                    cin >> amount;//Reads user's input
                  //check for errors

                       while ( cin.fail() || amount <= 0.0 )

                             {

                              cin.clear();//Reseting input to allow new input

                              cin.ignore(100,'\n');//Removes bad data up to 100 characters

                              cout << "Your entry is invalid, please try again:" << endl;

                              cin >> amount;

                             }

                      //Setting the structure

                    currency[question - 1].Dollar = amount;

                 } 

			   while (question != 0);
     }

void displayResults() //Displaying results for each currency and amount entered            

     {

      for (int i=0; i < 5; i++)

          {

            if(currency[i].Dollar > 0.0)

              {
                cout << setprecision(2) << fixed;

				cout << "\n\t" << currency[i].Dollar << " Dollars will buy " 

                     << currency[i].rate*currency[i].Dollar << " " <<  currency[i].totalCalc <<"\n";

              }

          }

     }

Vielen Dank im vor raus
xHITMANx

int i = 2;

int* pi = &i; //Der Zeiger pi zeig auf einen Integer (hier i)

Du solltest dir das noch mal überlegen und dann kannst du selber entscheiden, wann du einen Zeiger brauchst und wann nicht.

btw:
Man schreibt voraus nur mit einem 'r' und zusammen..