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In C and C++, a header file is a source code file that allows programmers to separate elements of a codebase – often into reusable, logically-related groupings. A header file declares programming elements such as functions, classes, variables, and preprocessor macros. A header file allows the programmer to use programming elements in multiple ...
While C and C++ maintain a large degree of source compatibility, the object files their respective compilers produce can have important differences that manifest themselves when intermixing C and C++ code. Notably: C compilers do not name mangle symbols in the way that C++ compilers do. [20]
windows.h is a source code header file that Microsoft provides for the development of programs that access the Windows API (WinAPI) via C language syntax. It declares the WinAPI functions, associated data types and common macros. Access to WinAPI can be enabled for a C or C++ program by including it into a source file: #include <windows.h>
The PlayStation source code can be found in a dummy file on the disc. [76] Actua Soccer 96: 1996 1996 DOS Sports: Gremlin Interactive: A demo CD that shipped with a game magazine accidentally contained the C++ source code of the game. [77] [78] Adventure in Time: 1981 2016 Atari 8-bit/Apple II Adventure game: Phoenix Software
In computer programming, a precompiled header (PCH) is a (C or C++) header file that is compiled into an intermediate form that is faster to process for the compiler.Usage of precompiled headers may significantly reduce compilation time, especially when applied to large header files, header files that include many other header files, or header files that are included in many translation units.
Files intended to be included typically have a .h suffix ( .hpp or .hh are also used for C++, but .h is the most common even for C++), and generally do not contain function or variable definitions to avoid name conflicts when headers are included in multiple source files, as is often the case. Header files can be, and often are, included in ...
The inclusion may be logical in the sense that the resulting content may not be stored on disk and certainly is not overwritten to the source file. In the following example code, the preprocessor replaces the line #include <stdio.h> with the content of the standard library header file named 'stdio.h' in which the function printf() and other ...
cscope is used in two phases. First, a developer builds the cscope database of the source code. The developer can often use find or other Unix tools to get the list of filenames needed to index into a file called cscope.files. The developer then builds a database using the command cscope -b -q -k.