How the .cpp file is linked to the header file?

Asked Oct 16 '15 at 06:43

Active Oct 16 '15 at 06:50

Viewed 56 times

I have one .h file, one .cpp file and one main.cpp file.

a.h

class abc {
      abc();
      ~abc();
      void dispaly();
};

implementation.cpp

#include "a.h"
void abc::dispaly()
{
 cout << "inside .cpp file";
}

main.cpp

#include<a.h>
#include<iostream>
int main()
{
  abc obj;
  obj.dispaly();
}

Now this program executes properly without any errors(Ignore syntax errors if any). In the main program i only included "a.h" file and not included "implementation.cpp". i don't understand how the implementation.cpp file is linked to the header file and main.cpp file?

edited Oct 16 '15 at 06:50

rici

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asked Oct 16 '15 at 06:43

Hemanth

1

you should read this http://stackoverflow.com/a/6264256/113608 – fixmycode Oct 16 '15 at 06:47
What are you using to compile your code? The linking doesn't happen in source. The linking is the last thing to be done before building the executable or library. – FrankM Oct 16 '15 at 06:48
My guess is that you're using an IDE and both source files are included in your project. – molbdnilo Oct 16 '15 at 06:55
I'm executing in linux machine using g++ – Hemanth Oct 16 '15 at 07:25

How the .cpp file is linked to the header file?

a.h

implementation.cpp

main.cpp

0 Answers0