An empty # sign is a null preprocessor directive. A null directive has no effect but you can use it to document your intentions, for example:
ifndef HEADER_INCLUDED#define HEADER_INCLUDED#else# // do nothing#endif
size=3>
Home » A Null Preprocessor Directive
An empty # sign is a null preprocessor directive. A null directive has no effect but you can use it to document your intentions, for example:
ifndef HEADER_INCLUDED#define HEADER_INCLUDED#else# // do nothing#endif
size=3>
At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.
See our full editorial policy.