Thread: include's extension

Depends on your compiler, but essentially you add all your class.cpp files to the project
In VC.NET for example, you just right-click on the file and choose "add file to project"

You need to put macro guards in the .h files with the class declarations. Class functions are placed in the .cpp file. Your .cpp file should have #include "foo.h".


Your .h file

Code:

#ifndef FOO_H
#define FOO_H

class foo
{
   private:
      int num1, num2, num3;

   public:
     ....
     ....
     int calcNum (int, int);

};
#endif

Your .cpp file

Code:

#include "foo.h"

int foo::calcNum (int a, int b)
{
   num3 = num1 + num2;
   return num3;
}

Code:

#include "foo.h"

int main ()
{
    foo x;
    .....
    .....
    x.calcNum ();
    
   return 0;
}

NB: This does not apply to template classes. With templates, both the declaration and their operations must be within the .h file.

Hope that helps.

Sophie

Posting code DOES help believe it or not. And the errors you're getting.