I want to move some of my functions to another file because my main file is getting too large. I’ve been told to use the project explorer to add a file to my project but there has to be more to it than that. There has to be a systematic way of doing this. All I need to know is how. Do I need a header file? Do I need to use the extern keyword? Do I need an #include. Where should it be inserted if so?
Here’s what I’ve done so far.
Created a project file.
Cut the function I wanted in a separate file from the main file and pasted it into the small file.
Created a header file with the function prototypes for both the big and small files.
Inserted an #include “header.h” into both the big and small files.
Tried to compile project. I then get an error saying “Undefined (but used) global label myFunction” where myFunction is the name of the function I moved to the small file.
Does anybody have a clue as to what I’m doing wrong? I’ve looked for an example in the sample directory but can’t find anything that uses multiple files. Would someone please help. Maybe post a very small example of something that works.
I am using Dynamic C 10.64.
May be you forgot to include function definition(myFunction).
If you send code , then i can find where is the problem.
For your understanding i am giving one example , try to do like this.
Create main.c ,1.c , 2.c , header.h files to your project.
In header.h file declare function prototypes like
In main.c file write main program like this
In 1.c file write like this
In 2.c file write like this
Then save the project, compile and run then it will work properly.
Hi Tom and Cpigilam,
did you resolve this issue?
I am struggling with the same problem using DC 10.66.
I found I had to add paths containing header files to the include paths via: Options > Project Options > Include Path tab (or manually by adding them to the Includes= line of the .dcp file).