When the preprocessor interprets
#if THREADMODEL==NOASC
it will replace THREADMODEL
with ASC
:
#if ASC==NOASC
Unless you have #define
d ASC
and NOASC
to have numeric values, the preprocessor will replace them with 0 values (it takes any undefined symbols and replaces them with 0):
#if 0==0
This then evaluates to 1
and so the preprocessor will evaluate the block.
To fix this, try giving different numeric values to ASC
and NOASC
, like this:
#define ASC 0
#define NOASC (1 + (ASC))
Hope this helps!