Yahoo Groups archive

AVR-Chat

Index last updated: 2026-04-28 22:41 UTC

Message

Re: Strange compiler warnings?

2007-04-17 by Bruce Parham

Watch out how you comment defines. SPIF will be replaced with a "7" and
the rest of the line will be commented out. If you must comment inline,
use a block comment:

    #define  SPIF     7  /* bit position for the SPIF bit in the SPSR */

to preserve the rest of the line.

Bruce 


--- In AVR-Chat@yahoogroups.com, "Richard Cooke" <rcooke@...> wrote:
>
> Hi Folks,
> 
> This is probably something I'm overlooking but can somebody point me
> in the right way concerning this?
> 
> I need to add this to one of the header files:
> 
> #define  SPIF     7  // bit position for the SPIF bit in the SPSR 
> 
> If I add this I get 8 warnings complaining 
> "Unreferenced function 'Function1'"
> "Unreferenced function 'Function2'"
> "Unreferenced function 'Function3'"
> "Unreferenced function 'Function4'"
> "Unreferenced function 'Function5'"
> "Unreferenced function 'Function6'"
> "Unreferenced function 'Function7'"
> "Unreferenced function 'Function8'"
> 
> I have properly (I think) defined these functions as prototypes in the
> Header file.  If I remove the #define SPIF  7 line the warnings all go
> away but then the compiler gives me two errors complaining that SPIF
> is undefined.  
> 
> I'm using the latest CodeVision.
> 
> Any ideas?
> 
> Thanks,
> 
> Richard Cooke
>

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.