I need an example

**swgh** · 03-26-2007

Odd to have cin.ignore in the loop structure, I would of placed that before return 0, but I suppose it depends on the OP and how he/she wants to implement the program

**Sentral** · 03-26-2007

Try running your program from the commandline, and see if the window still blinks.

**PublicAutopsy** · 03-26-2007

Code:

#inclide <iostream

using namespace std;

int main()
{
    int a;
    int ( a == 159753 )
    do {
    cout<< "Password:";
    cin>> a;
    cin.ignore();
} while ( a != 159753 )
    
    cout<< "Incorrect, try again.\n";
}

else if ( a == 159753 )

    cout<< "Correct, please proceed.";
}

OK I get an error on the line that says do.
What is wrong there?

**Noir** · 03-26-2007

do while loops have to end with a semicolon:

Code:

} while ( a != 159753 );

And your if needs an opening bracket.

**robatino** · 03-26-2007

If you fix your indentation, the problem should be obvious.

Edit: Never mind, there's more than one problem and the first one is before the broken indentation starts (though that doesn't help).

Edit: Actually, I see two errors on the very first line. I'm surprised the compiler got as far as it did.

**PublicAutopsy** · 03-26-2007

"expected `;' before "do""

That is the error I get on the do line.
what does that mean exactly?

**Daved** · 03-26-2007

It means that the compiler expected a semi-colon before the word "do" on that line. That means that the previous line has confused the compiler. It may be something small, like adding a semi-colon, or it may be something more complicated, like accidentally typing int when you meant if.

**PublicAutopsy** · 03-26-2007

Code:

 #include <iostream>

using namespace std;

int main()
{
    int a;
    int ( a == 159753 );
do{
    cout<< "Password:";
    cin>> a;
    cin.ignore();
} 
while ( a != 159753 );
    
    cout<< "Incorrect, try again.\n";
}

else if ( a == 159753 ) 
{

    cout<< "Correct, please proceed.";
}

On line 19 (the one with else if) gets these errors

expected unqualified-id before "else"
expected `,' or `;' before "else"

How can I fix it?

**PublicAutopsy** · 03-26-2007

Can someone patch up the program abocve for me?

There seems to be a few things wrong with it.

**robatino** · 03-26-2007

For starters, the line

Code:

  int ( a == 159753 );

doesn't make sense. You don't seem to need it anyway, so get rid of it. After that, fix your indentation as I suggested earlier, and you will uncover other mistakes yourself.

**PublicAutopsy** · 03-26-2007

It says
expected primary-expresion before "eleS"
expected `;' before "else"
[line 23]expected `}' at end of input (times 2)

What do all those mean?

**Brad0407** · 03-26-2007

You program won't exit the loop until a == 159753 so there is no point in checking what it is. You can't have an else if statement unless you have an if statement preceeding it. You don't want the '}' right after the while ( a != 159753 ); And main should return 0; although technically you don't need it. And just remove int ( a == 159753);.

**PublicAutopsy** · 03-26-2007

Code:

#include <iostream>

using namespace std;

int main()
{
    int a;

    cout<< "Password:";
    cin>> a;
    cin.ignore(); 
    if ( a != 159753 ); {
       cout<< "Incorrect, try again.\n";
    }
    else {
         cout<< "Correct, please proceed.";
    }
    cin.get();
}

I changed it to this
It got rid of all the errors except
expected primary-expresion before "eleS"
expected `;' before "else"

what can i do to fix it?

**Brad0407** · 03-26-2007

Code:

if ( a != 159753 );

Remove the semicolon at the end.

Thread: I need an example

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