Question

Difference between library and system files in c language

Answer 1

Difference between Header file and Library. Header Files : The files that tell the compiler how to call some functionality (without knowing how the functionality actually works) are called header files. They contain the function prototypes. They also contain Data types and constants used with the libraries.

Answer 2

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● A header file notifies the compiler of certain things (mostly their existence or declarations) so that the compiler can correctly build a single translation unit (such as a single C file).

●A library file is the actual executable code that does the work as specified in that header file. This is linked in by the linker to provide the actual functionality (the definitions rather than just the declarations).


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