Libraries Headers

Example

Header.png

In this example, LibFile.c could represent any library file, whether it is included with the compiler (such as ADC.c, USART.c, etc.) or one of your own making. The header file, LibFile.h, contains the extern variable declarations and function prototypes that will be required by any program that wants to access the variables and functions contained in LibFile.c. So, if we #include LibFile.h into our program Main.c and we add the file LibFile.c to our project, Main.c will have access to any variable or function in LibFile.c that is declared in the header file LibFile.h.

Note that LibFile.c could be replaced with a pre-compiled object file such as LibFile.o or a library (archive) file that may contain many related precompiled source files such as LibFile.lib (C18 and most non-GNU compilers) or LibFile.a (C30 and all GNU based compilers).

© 2024 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.