Alternative to #define to literally replace a string?

Guest · Posted: Wed Apr 19, 2006 1:30 pm

My problem is that I'm tring to redefine a function such as:

#define output_high(LED) output_high_portb0()

If this was taken literally how it was written, it would only replace this particular string, resulting in my function being called for the LED pin, and the CCS functions for all other pins. Which is what I want.
However CCS recognises it as some sort of macro and tries to match up the parameters in the brackets. It compiles without error but no code seems to be generated for all instances of output_high() apart from instances of output_high(LED), of which my custom code appears.

Is there any way I can get round this so the #define is taken literally as it is written?

Ttelmah · Guest

Not really.
#define, _is_ a macro language. This is not a problem with CCS, but standard C.
Items in brackets after the identifier, are taken as parameters to the declaration.
You can do something like:

Guest · Posted: Wed Apr 19, 2006 5:29 pm

Thought I would be out of luck!

OK thanks for your help Ttelmah.