. "macro" . "C" . "'#ifdef' directive" . . "C_preprocessor#Token_stringification" . . "C or C++ preprocessor" . "C_preprocessor#Token_concatenation" . "C preprocessor macro language" . . "cpp" . . "Preprocessor macros" . "C style preprocessing" . "C preprocessor" . "C preprocessor#Token stringification" . "#defines" . "symbolic constant" . . "preprocessor" . "C/C++ preprocessor" . . "preprocessing" . "conditional compilation" . "C preprocessor" . "#pragmas" . "#include" . "preprocessor macros" . "macros" . . "preprocessor directive" . "#define" . .