Sep 13, 2025 · In C programming, a header file is a file that ends with the .h extension and contains features like functions, data types, macros, etc that can be used by any other C …

The #include preprocessor directive is used to make the definitions of functions, constants and macros etc. from one file, usually called as a header file, available for use in another C code.

Tip: Header files usually contain function declarations, macros, and struct definitions. In this example, you will learn how to create your own header file and use it to organize code across …

Header files are additional files in a C language containing definitions of different functions and their associated variables that need to be imported into a C program with the help of a …

In C programming, header files provide a systematic way to organize and reuse code efficiently. They contain function declarations, macros, and constants that can be shared across multiple …

What Is a Header File? A header file in C is a declaration file that can include function prototypes, struct definitions, macro definitions, and declarations of external variables. This allows code to …

What Are Header Files? Header files in C are files with a .h extension that contain declarations of functions, variables, and other constructs that can be shared across multiple source files.

Jul 1, 2025 · Header files in C are files with a .h extension that contain declarations of functions, macros, constants, and data types used in a program. They act as a bridge between the …

What Is A Header File In C? A header file in C langauge is a text file containing definitions of functions, variables, and macros that are shared among multiple source files. It provides an …

Oct 26, 2024 · What Are Header Files in C? Header files (with the .h extension) serve as the interface declaration for your C programs. They typically contain: Here's a simple example of a …