What is the significance of the .h extension in header files?

Question

What is the significance of the .h extension in header files of a C or C++ program?

"H" is for "Header" (and ["C" is for "Cookie"](https://youtu.be/Ye8mB6VsUHw)). — Sergey Kalinichenko, May 06 '18 at 21:06
It's simply "h" for "**h**eader file". It's a convention and not enforced. — Some programmer dude, May 06 '18 at 21:06

Robert Andrzejuk · Answer 1 · 2018-05-06T23:26:52.083

1

No significance. It is just a convention for programmers to quickly recognize what is in the file. Standard C++ library headers don't have it.

edited May 06 '18 at 23:26

answered May 06 '18 at 21:06

Robert Andrzejuk

Note that C standard library headers do have the extension. – Acorn May 06 '18 at 21:08

score 1 · Answer 2 · answered May 06 '18 at 21:06

1

to mark a header file, .h stands for header as much as .cpp stands for C Plus Plus, did I get your question right?

answered May 06 '18 at 21:06

Pierre Ghaly

2 Answers2