Return to start of program

[TheAce1]

Hi all
im having abit of trouble getting one of my if statements to return back to the start of the program, i have tried several different ways and haven't had any luck. Any help would be appreciated

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case 'q': case 'Q': cout << "Are you sure you want to quit? Type Q to quit or C to continue.\n"; char q, Q, c, C; cin >> ans; if (ans == q || Q) { exit(0); } else if (ans == c || C) {

} else (ans != q || c ); { cout << "Invalid choice"; } break;

[Scipio]

You could use this construction:

bool goOn;
do
{
//... your main-loop
goOn=false //make sure the program wont keep on repeating

//the switch:
case 'Q':
if() //if program should return
{ goOn=true}
break;
//end switch

if (!goOn) //I guess the rest shoulnt be executed
{}//rest of your main

//end do-while loop:
} while (goOn)

[Toxic90]

your or statements are wrong, you must replace
else (ans != q || c );

for

else (ans != q ||ans != c );

the same with all of them with the same structure

[TheAce1]

i tried what scipio mentioned but had no success...could it be that im using a switch statement? or does that not make any difference?..this is what i have got:

Room*Room:: moveDirection(char userChoice)
{  
   //use a switch statement to go to a certain case depending on the user input
   //gets the users input userChoice
   switch(userChoice)
   {
   case 'n':
   case 'N':
      //returns the north location
      return m_North;
      
   break;
   
   case 'e':
   case 'E':
      //returns the east location  
      return m_East;
      
   break;
   
   case 's':
   case 'S':
      //returns the south location  
      return m_South;
      
   break;
   
   case 'w':
   case 'W':
       //returns the west location 
       return m_West;
      
   break;
   
   case 'q':
   case 'Q':
        //the quit feature
        //gives the user the option to continue or quit
       cout << "Are you sure you want to quit? Type Q to quit or C to continue.\n";
        char q, Q, c, C;
       //gets the users input ans
        cin >> ans;
        
        if (ans == q || ans == Q)
           {
                 //<-exit program??
           }     
        else if (ans == c || ans == C)
           {
                 //<- continues at same position     
           }
        else (ans != q ||ans != c );
          {
                 //<- displays an error and then the cout << are you sure.... part again     
          }                     
     break;

[Scipio]

char q, Q, c, C

Here you declare the names of variables of type char, wich has nothing to do with their actual value. If ans is of type char to, you could use this:

if (ans == 'q' || ans == 'Q')

Btw. The fact that you're using a switch-statement does not in any way effect how the commands in it are executed, only when. What could be a problem however, is the scoop of variables: you need to declare goOn at the beginning of main(), and not at the beginning of the switch statement, so it you can access it from the whole main body.

[TheAce1]

o yer i see what you mean my mistake..changed that now

[TheAce1]

the exit program part is still throwing me errors. Whats the best wayt o amke it just exit completely?

[CheesyBeefy]

The best way to exit would be: return 0

Try something like this.

do {

bool bRestart = true;

//( . . . )

Room*Room:: moveDirection(char userChoice)
{  
   //use a switch statement to go to a certain case depending on the user input
   //gets the users input userChoice
   switch(userChoice)
   {
   case 'n':
   case 'N':
      //returns the north location
      return m_North;
      
   break;
   
   case 'e':
   case 'E':
      //returns the east location  
      return m_East;
      
   break;
   
   case 's':
   case 'S':
      //returns the south location  
      return m_South;
      
   break;
   
   case 'w':
   case 'W':
       //returns the west location 
       return m_West;
      
   break;
   
   case 'q':
   case 'Q':
        //the quit feature
        //gives the user the option to continue or quit
       cout << "Are you sure you want to quit? Type Q to quit or C to continue.\n";
        char q, Q, c, C;
       //gets the users input ans
        cin >> ans;
        
        if (ans == 'q' || ans == 'Q')
           {
                 return 0;
           }     
        else if (ans == 'c' || ans == 'C')
           {
                 bRestart = false;   
           }
        else if (ans != 'q' && ans != 'Q' && ans != 'c' && and != 'C');
          {
                 cout << "ERROR" << endl;
                 cout << "Are you sure?";
          }                     
     break;

} while( bRestart == true );

[Scipio]

If you use the construction of CheesyBeefy, you don't have to use the variable bRestart. Instead, you could use an *infinitive* loop:

while (true)
{
//...
 if (ans == 'q' || ans == 'Q')
           {
                 return 0; //here it quits: it doesnt exucete anyting else
           }
else if (ans != 'q' && ans != 'Q' && ans != 'c' && and != 'C');
          {
                 cout << "ERROR" << endl;
                 cout << "Are you sure?";
          }                     
     break;
//If the user entered he want to quit, the program won't reach this point,
//so there is no need for an extra variable
}