I have been trying to merge free snippets of code and having problems with
the MPLAB pre-processor.
Is there a way to debug the pre-processor directives.
I get the following error,
C:\data\MPLAB\Ethernet\MyPicWeb\src\net\include\StackTsk.h:65:Error [1099]
Invalid MAX_TCP_SOCKETS value specified.
but MAX_TCP_SOCKETS is clearly defined as
#define MAX_TCP_SOCKETS (8ul)
in an include file that is included before StackTsk.h is included. (in
tick.c)
I tried
#define MAX_TCP_SOCKETS (9ul)
just before
#if (MAX_TCP_SOCKETS <= 0 || MAX_TCP_SOCKETS > 255)
#error Invalid MAX_TCP_SOCKETS value specified.
#endif
and get
C:\data\MPLAB\Ethernet\MyPicWeb\src\net\include\StackTsk.h:61:Error [1034]
previous definition of macro 'MAX_TCP_SOCKETS' does not agree
so I tried
#define MAX_TCP_SOCKETS (8ul)
just before the #if ... #endif
and no problems.
So the pre-processor is aware the label is pre-defined but complains.
I am obviously missing the point, any suggestion exactly what the compiler
is complaining about.
I have tried going thru the help with search words like preprocessor and
#define but they dont really give me an insight into the way include files
and the corresponding pre-processor directives are processed.
Any links pointers etc welcome,
Cheers Justin
--
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
