Define c

1. What is #define in C?
2. What is define directive in C++?
3. Why the define directive is used?
4. What is C ATX?

What is #define in C?

Description. In the C Programming Language, the #define directive allows the definition of macros within your source code. These macro definitions allow constant values to be declared for use throughout your code.

What is define directive in C++?

The #define directive causes the compiler to substitute token-string for each occurrence of identifier in the source file. The identifier is replaced only when it forms a token. That is, identifier is not replaced if it appears in a comment, in a string, or as part of a longer identifier.

Why the define directive is used?

The #define directive is used to define values or macros that are used by the preprocessor to manipulate the program source code before it is compiled. Because preprocessor definitions are substituted before the compiler acts on the source code, any errors that are introduced by #define are difficult to trace.

What is C ATX?

Smaller than the usual ATX case, the Define C and its optimized interior provides the perfect base for users of all kinds. The open air design offers unobstructed airflow across your core components with high performance and silent computing in mind at every step.