c++ - Why make new header files when you can just use C files? -


this question has answer here:

i working sockets , , noted lot of code wrote repeated in different programs , wrote functions of stuff did , saved them in ".c" file without main function. included file in programs wrote using #include . thought of creating header file same figure out how work can't figure out difference make. won't work same way ?

including .c files means compiler has preprocess, parse, , compile code every time - if never changes.

turning common code library header file clients means needs compiled once.

this won't make difference tiny amount of code, it's big deal larger libraries.


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