[redivivus]

I need to know the difference between all these stupid file extensions.

.h
.hh
.c
.cc
.o

^-- These are the only ones that are annoying me so far. I am trying to include a class and it has a .cc and a .hh file. I believe the .hh file declares all the class functions and the .cc defines all the functions.

How do i include these into the original program? It gives me errors only when i try something like #include "filename.cc".

[AGCurry]

.h -- header file
.hh -- header file
.c -- C language source file
.cc -- C++ language source file
.o -- object file

To understand how all these files are related, you need to know that three processes are made on the files in order to take them from text files to an executable program.

1. Preprocessing recognizes and executes the preprocessor directives like #include, #define, #pragma, #ifdef, etc.. Files which are #included are read and inserted lexically into the files which #include them, and #defined symbols are replaced by their definitions.

2. Compilation reads the files resulting from preprocessing, checks syntax, and creates object files (.o).

3. Linking resolves external references within the .o files and creates an executable file.

Header files should not contain data or executable code.

.c and .cc files wil #include header files but should NOT #include other .c or .cc files.

.o files are binary files and can only be linked -- not included.

Hope this helps.

[redivivus]

Thanks...

Just to follow up on that, if im trying to include a .hh and .cc file i would do something like this?

\\main file
#include "header.hh"
...

\\header.hh
#include "source.cc"
...

Is there something wrong with that it gives me an error. :-\

[BanditFlyer]

I think comments are done with //, not \\

What errors do you get?

[redivivus]

Originally Posted by BanditFlyer

I think comments are done with //, not \\

What errors do you get?

Couldnt remember lol. And nor do i use them.

The compiler highlights the line #include "file.hh" and says something like Error in calling file, though im not sure exactly what it was... i remember that it told me basically nothing about the error. :-\

[AGCurry]

Originally Posted by redivivus

Thanks...

Just to follow up on that, if im trying to include a .hh and .cc file i would do something like this?

\\main file
#include "header.hh"
...

\\header.hh
#include "source.cc"
...

Is there something wrong with that it gives me an error. :-\

YES, this is not correct. What you've coded above is a recursive include - file a includes file b which includes file a ...

Your source-code files - .c and .cc - will include .h and .hh files. Not vice versa.

[redivivus]

Originally Posted by AGCurry

YES, this is not correct. What you've coded above is a recursive include - file a includes file b which includes file a ...

Your source-code files - .c and .cc - will include .h and .hh files. Not vice versa.

Getting confused more now lol.

Is cc like cpp? Or am i right in thinking it is just an expansion of the individual header file?

And how do it include it in my MAIN program source code?

[BanditFlyer]

cpp are the files you write, .cc are the libraries already written in c++.

What AGCurry was saying is that your code should look like this:

Originally Posted by redivivus

\\main file
#include "source.cc"

...

\\source.cc
#include "header.hh"
...

Not like this:

Originally Posted by redivivus

Thanks...

Just to follow up on that, if im trying to include a .hh and .cc file i would do something like this?

\\main file
#include "header.hh"
...

\\header.hh
#include "source.cc"
...

Is there something wrong with that it gives me an error. :-\