C Preprocessor testing definedness of multiple macros

c c-preprocessor logical-operators preprocessor-directive

Try:

#if defined(_WIN32) || defined(_WIN64)// do stuff#endif

The defined macro tests whether or not a name is defined and lets you apply logical operators to the result.

c c-preprocessor logical-operators preprocessor-directive

You must use #if and special operator defined

c c-preprocessor logical-operators preprocessor-directive

I think it should be possible this way:

#if defined block1 || defined block2 /*or any other boolean operator*/   /*Code*/#endif

More information here

CodeHunter