HC File

HC file format consists of header files that contain necessary declarations, macro definitions, and names used in a programming project. These are text files with source code included during compilation, allowing for proper references to individual functions without the need to load their entire code. They are also referred to as include files because they are included in source code files of C-family languages with the include command.

General .HC extension for header files

The .HC extension is used by certain source code editors and integrated development environments. They are characteristic of projects written in C, C++, and related languages. The standard extension for header files is .H - from the word head, meaning header. The addition of the letter C by an editor most commonly indicates the language in which the project is written, to differentiate it from other header files. Most commonly found in Microsoft Visual Studio.

Including header files in the project

In the source code files of the program, header files are conventionally included at the beginning, in the header. This is done with the include command. It allows for increased project readability and the construction of an appropriate structure. In HC files, the following can be written in the source code:

• variable declarations,
• function declarations,
• class declarations,
• data structures.

Header files can be created by the programmer. Often, available header files from libraries, such as system libraries, are also used.