Feb 20, 2016 · 6 because ## is a token concatenation operator for the c preprocessor. Or maybe I don't understand the question.

C preprocessor directives/macros are just another form of "meta-programming", albeit a relatively cruder form than is available in other languages. Preprocessor directives instruct the compiler …

In my project, the program can do one thing of two, but never both, so I decided that the best I can do for one class is to define it depending of a #define preprocessor variable. The following cod...

FYI, identifiers/names, including preprocessor symbols, beginning with an underscore followed by a capital letter (or beginning with two underscores) are reserved to the implementation by the …

Doing it as a parametrised macro is a bit odd. Just do something like this: #ifdef USE_CONST #define MYCONST const #else #define MYCONST #endif Then you can write code like this: …

The preprocessor cannot use variables from the C program in expressions - it can only act on preprocessor macros. So when you try to use c in the preprocessor you don't get what you …

Apr 28, 2023 · How do I view the output produced by the C pre-processor, prior to its conversion into an object file? I want to see what the MACRO definitions do to my code.

Nov 10, 2008 · Let's say I have a source file with many preprocessor directives. Is it possible to see how it looks after the preprocessor is done with it?

Apr 2, 2016 · 4 Preporcessor: the program that does the preprocessing (file inclusion, macro expansion, conditional compilation). Macro: a word defined by the #define preprocessor …

Mar 24, 2025 · Even worse hack, but actually working For masochists, I provide a preprocessor macro that expands to expression that can be evaluated during compile-time to a boolean on …