another noobie question

cin.get();

The FAQ said to use this to keep my window from closing, however, i put it in the below code and it still closes....

Code:

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#include <iostream.h>                       

int main()                                //Most important part of the program!

{

  int age;                                //Need a variable...

  cout<<"Please input your age: ";        //Asks for age

  cin>>age;                                //The input is put in age

  if(age<100)                                //If the age is less than 100

  {

    cout<<"You are pretty young!";    //Just to show it works

  }

  else if(age==100)                //I use else just to show an example

  {

    cout<<"You are old";                //Just to show you it works...

  }

  else

  {

    cout<<"You are really old";        //Executed if no other statement is executed

  }

  cin.get();

  return 0;

}

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Lookup cin.ignore(); which you can use to flush unwanted characters from your input buffer.

how do i look something up? Why would I want to flush characters?

When you used cin>> to load data into the int variable, it left the newline character in the input buffer. When cin.get() ran, it simply read that newline character in, and gave you the impression that the program wasn't waiting for the user. That is why you need to flush the input buffer when you use this method.

just before

Code:

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return 0;

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put in:

Code:

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system("PAUSE");

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It'll ask you to press a key before closing...

I tried

system("PAUSE");


but that resulted in a call to undefined system error

Have you used getchar();

?

You've gotta include system.h, stdlib.h and iostream.h also if you've got it conio.h (the last one definately has it, not sure bout the others though)

ooops forgot to say-getchar(); will hold the screen for you.Put before your return 0.

ok now system.h cannot be opened and getchar is undefined

Quote:

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Originally posted by Noobie
ok now system.h cannot be opened and getchar is undefined

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Just try <iostream.h> and <conio.h>

both system and getchar are undefined functions

Repost your code plz

Code:

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#include <iostream.h>
#include <conio.h>

int main()
{

  char choice;
  char room;
  char x=0;

  cout<<"Please choose a room (1 or 2): ";

  while(x==0)

 {

    cin>>choice;         

if(choice==1)
x=x++;
else if(choice==2)
x=x++;
else
x=x;                       
  }                               

  if(choice==1)                               

  {

                  room=1;
    cout<<"You enter a room\n";   

  }

  else if(choice==2)               

  {
                  room=2;

    cout<<"You are in room 2\n";               

  }

  else

  {

    cout<<"You should not see this.\n";

  }

  if (room==1)
  {
  cout<<"Yep";
  }
  else if (room==2)
  {
  cout<<"Nope";
  }
  else
  {
  cout <<"I need to know how to ask them to plz enter a proper room choice, but how to do that? i don't know.";
  }
  system("PAUSE");
  getchar();
  return 0;

}

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Try this

Code:

---

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{

  char choice;
  int room;
  int x=0;

  cout<<"Please choose a room (1 or 2): ";

  while(x==0)
  {

                cin>>choice;         

                if(choice=='1')
                x=x++;
                else if(choice=='2')
                x=x++;
                else
                x=x;                       
  }                               

  if(choice=='1')                               
  {

                  room=1;
                cout<<"You enter a room\n";   

  }
  else if(choice=='2')               
  {
                  room=2;
                cout<<"You are in room 2\n";               
  }
  else
  {
                cout<<"You should not see this.\n";
  }
 
  if (room==1)
  {
                cout<<"Yep";
  }
  else if (room==2)
  {
                cout<<"Nope";
  }
  else
  {
                cout <<"I need to know how to ask them to plz enter a proper room choice, but how to do that? i don't know.";
  }
  system("PAUSE");
  getchar();
  return 0;
}

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namespace name expected
call to undefined functions getchar and system

Try <iostream.h> instead of <iostream>

doesnt work

the errors are the same either way

Is this thread the same as this one ?

take out the system pause. you dont need that AND getchar();

Quote:

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Originally posted by Hammer
Is this thread the same as this one ?

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Not really, but there seem to be a 'noobie' flood on the board,
lotsa 'noobie asking help' forums swarming around here.