.h File Inclusion in C++

Hady · 05-30-2005, 12:46 AM

Hi!

I am working in C++, I have many .cpp and .h files, and things have started to mix up with the #include "file.h" stuff...

is there any good/simple/complete tutorial that guides me what to do and how to include files when there are many interrelated files in C++ ?

or could anyone tell me about a general rule that would make my C++ experience easier?!

Thank you for your time.

Hady

jonaskoelker · 05-30-2005, 01:55 AM

Quote:

is there any good/simple/complete tutorial that guides me what to do and how to include files when there are many interrelated files in C++ ?

$ touch all.h
$ for i in *.h; do echo "#include \"$i\"" >> all.h; done
(remove #include <all.h> and #ifdef-guard it)
include all.h in your .cpp files

Quote:

or could anyone tell me about a general rule that would make my C++ experience easier?!

yeah, don't use it. (ha-ha-only-serious)

hth --Jonas

Chris Weimer · 05-30-2005, 07:27 AM

Hady - what's your problem exactly? Are you on linux? Are you using then g++? Be a little more specific and we can answer your questions.

From it sounds like, use <> for standard C++ headers and "" for headers you make.

Hady · 05-31-2005, 01:58 AM

Hi Chris!

THANKS for replying!!

Well... no, i'm not on linux (can this still be posted here!?)
I have a C++ program (No MFC, No Win Libraries), it compiles well on Visual Studio 6.0,
when I try to compile it on Dev-C++ it gives me inclusion errors?

I am using use <> for standard C++ headers and "" for my headers.

I want to know if there is any tutorial on this manner? any conventional way?

Thanks again Chris.

Hady

enemorales · 05-31-2005, 07:10 AM

Are you writing "#include <iostream>" or "#include <iostream.h>"? (same applies to other .h files). Maybe you also need to define some environment variables...

Chris Weimer · 05-31-2005, 08:22 PM

I don't really know of a tutorial. But you're right do #include <iostream> for standard headers and if you got your own do #include "myown.h" - make sense?

kryptonite0110 · 05-31-2005, 08:24 PM

are you sure your compiling it as a 16 bit program? dev-c++ i believe compiles all it's programs by default to 32 bit. also, the way i regulate all my inclusions is to put this in each file:

Code:

#ifndef __(filename)__
//code 
...
//#define __(filename)__
#endif

that way, if a file is included twice, it doesn't redefine anything in the file. what are the actual error messages it gives you?