Thread: very basic beginner problem

when i try to compile my code... i get an error concerning the variable... i was playing aroud with some of the code in lessons 1-3 on the beginners guide... and wondered if you could input x yourself instead of the program declaring the variable itself. the error is on the line

Code:

 cin>> X;

should be a simple fix, but i cant figure it out. the line i replaced was

Code:

  x = 0;

Code:

 
#include <iostream>

using namespace std;

int main()
{
  int x;

cin>> X;
cin.ignore();
  do {
    // "Hello, world!" is printed at least one time
    //  even though the condition is false
    cout<<"Hello, world!\n";
  } while ( x != 0 );
  cin.get();
}

hope my tags work... this was my 1st post...

C and C++ are case sensitive, that means that x and X are two different things. change X to x and it should compile ok.

And that do while loop is infinite because the value of x is never changed.

thank you, yes i planed to include something to change the variable next, but i was compiling there to test to see if i run into the same type problem that i did.

return statements are automatic in main(). just thought I would say that, and also if you use other function besides main(), then you will have to manually put in return statement. You can use return statement in main() to return a uncsucessfull program. Well anyways thats about it. ASlso another hint which ancient dragon already stated BE VERY CAREFUL with case sensitive. no matter what x is defferent X.

Originally Posted by Dae

Also isn't return 0 required in VC++? Is that wrong?

yes, vc++ 6.0 is older than the current c++ standards. There are quite a few things that vc++ 6.0 does not support. If you are learning C++ then you should probably not use any of the Microsoft compilers