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

Mar 14, 2016 · A preprocessor is an "engine" executed before the compiler compiles code. #define #include are preprocessor directives or macros, so the preprocessor engine executes …

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 …

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...

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 …

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 …

How can I use #if inside #define in the C preprocessor? Asked 15 years, 6 months ago Modified 8 months ago Viewed 51k times

Jan 26, 2012 · How do I define a preprocessor variable through CMake? The equivalent code would be #define foo.

Sep 18, 2010 · 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.

Apr 2, 2016 · Preprocessor directives are like commands to the preprocessor program.Some common preprocessor directives in C are #include <header name> - Instructs the …