#include "IQmathLib.h" in header file

At the end of the day, IQmath.h needs to somehow get in to each source file using IQmath.  You could include IQmath.h in some other header file that you already have included in each source file using IQmath.

Regards,

David

This is basic 'C' stuff - it has nothing specifically to do with IQMath or CCS.

Fanx said:

Is there any way to make it simple (sic?) so that I don't need to include IQmath.lib in this kind of header file?

As  David M. Alter has already said, you just need to make sure that you #include "IQmathLib.h" some time before you use anything else which requires it - including  #include-ing headers which require it:

:
:

#include "IQmathLib.h" /* This makes the IQMath stuff available to everything which follows... */

:
:

#include "test,h"  /* A header which requires IQMath */

#include "test2,h"  /* Another header which requires IQMath */

/* A local use of IQMath */
typedef struct
{
    _iq test1;
    _iq test2;
} TEST;

:
:
etc...

Whether this is actually any "simpler" is debatable - because you now have to worry about taking care to get your #includes in the right order...!

Fanx said:

I don't know what is wrong in my code or the compiler. 

It's your code, I'm afraid - see above.

Andy Neil said:

This is basic 'C' stuff - it has nothing specifically to do with IQMath or CCS.

http://c-faq.com/cpp/nestincl.html

Fanx,

Fanx said:

I saw some code in which the header file does not include IQmath.lib or anything else while the structure variables are defined with _iq successfully.

Not possible.  The code you saw must have had IQmath.h included somewhere upstream of the use of _iq.  As Andy said, this is basic C stuff and has nothing to do with IQmath or the C2000 compiler.

What you could do is create a master include file that you include in all your C-source files.  That include file will include all the other include files (and I usually put all constant definitions, variable externs, function prototypes, etc. in here).  As Andy said, you will need to include IQmath.h BEFORE any other include file that references an IQ symbol (such as _iq).  But at least this way once you get the order of the include files correct, you can forget about it (until someone else comes along and modifies the file and breaks the code!).  A downside of this approach is that a change to ANY include file will cause your entire project to rebuild on an incremental build.  Some people do not like this because very large projects will take time to rebuild.

- David

David M. Alter said:

a master include file that you include in all your C-source files.  That include file will include all the other include files (and I usually put all constant definitions, variable externs, function prototypes, etc. in here) ...   Some people do not like this because very large projects will take time to rebuild.

And some people would call this "poor style" - as it breaks with the principles of modularity and loose coupling.

But that's a whole different discussion (again, nothing specifically to do with IQMath, CCS, or TI)...