SparkFun Electronics Forum

Hi! I'm back in town!!

I'm not much of a C programmer so I'm having some troubles....

I'got a macro and i want to use it in another module. How can I do it??

#define WEN var1

that's in module1.h

and I want to use WEN in module2.h

And I can't do it!!!

Any help is helpful [/code]

You'd need to put: somewhere in module2 prior to the point at which you first use the macro.

Yes; I try to do that but an error flashes. And it's because I use functions from modulo2 in modulo1 and it says that there is an "ilegal function redefinition".
Believe me I'm getting MAD

Are you putting actual functions (not just function declarations) in your *.h files?

The normal structure for a multi-file C program is to have all functions in *.c files, each of which (except maybe for the top-level file) having a corresponding *.h file with declarations for the public functions & variables actually defined in the *.c file. Each *.c file #includes its own header file at the very top, along with the headers for each other *.c file containing items it references.