handel-c library file

[Raven76]

hello,

I want to build tcp/ip-Stack as an library file.
The stack contains one tcp.hcc-file with the main-function and
and some other macros and functions. The second file is a headerfile
where all the variables are declared and the macro/functions-prototypes
are in it. Its my first time building a library file at all.
1. I think I have to put the main-function in the file which should
later include the library file (its not allowed to have a main-function
in a library-file, or), is it right???
2.I did that, I made a new project which includes the tcp.hcl
the code of the project is only the tcp-mainfunction from the old
tcp.hcc file
3. No there are a lot of errors, some var. are undeclared and
some are redifined.

can somebody help me,thanks,
michael

 

[Alan Fitch]

hello,

I want to build tcp/ip-Stack as an library file.
The stack contains one tcp.hcc-file with the main-function and
and some other macros and functions. The second file is a headerfile
where all the variables are declared and the
macro/functions-prototypes
are in it. Its my first time building a library file at all.
1. I think I have to put the main-function in the file which should
later include the library file (its not allowed to have a
main-function
in a library-file, or), is it right???
2.I did that, I made a new project which includes the tcp.hcl
the code of the project is only the tcp-mainfunction from the old
tcp.hcc file
3. No there are a lot of errors, some var. are undeclared and
some are redifined.

can somebody help me,thanks,

It sounds like you are getting multiple definitions, which isn't
allowd in
C (or HandelC).

The approach many people take is to create a "sentinel" in the header
file so that it can only be included once.

So in your header file tcp.hcc, put

#ifndef TCP_HCC
#define TCP_HCC

/* all the code from the header you wrote */



#endif

and that makes sure that if a file in your design includes tcp.hcc
twice,
it only really gets included once.

I hope this helps,

regards

Alan


--
Alan Fitch
Consultant

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