Is there an easy one-line way to define a C preprocessor macro only if it doesn’t already exist?
I have a file with hundreds of preprocessor macros of the form…
Have I got these #if #endif statement blocks wrong?
I’m trying to figure out which CPP standard the compiler is using, when I compile on Windows this works, but when I compile on Linux nothing gets set and the vale remains 0. Am I doing something wrong?
In the C preprocessor does #define incorporate previous #defines?
With these #define
s without arguments
In the C preprocessor does #define incorporate previous #defines?
With these #define
s without arguments