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QNX RTOS v4 Knowledge Base

Title List of predefined macros for Watcom
Ref. No. QNX.000008502
Category(ies) Development
Issue Wants to know if there is a list of predefined macros such as the preprocessor macros like #ifdef.

Solution There are in a old Watcom Book titled "Language Reference" ISBN: 1-55094-033-3. It was part of the earlier releases of Watcom, but was not part of the 10.6 document set. It not only describes things about the C language, but also in cases where the C specifcations were "undefined" what Watcom did.
It includes information on the macros that are supported.