I know that to include headers you must type #include <header.h>
.
Is there a way to include the header as #include <header>
, like we do with iostream
or cstdlib
?
Just rename header.h
to header
. The files iostream
, cstdlib
, etc are files with exactly those names that don't have any extension. For example, here is a screenshot of Visual Studio's iostream
file in Windows Explorer:
Usually when you create your own header file it has the extension .h
(or sometimes .hpp
), but nothing in the C++ standard forces them to have any specific extension. You can include a file with any you want as long as its contents is valid C++. Some libraries like the C++ standard library or Qt don't have any extension on their header files just to make your code look nice. Most IDEs automatically add a .h
extension when you create a header file because .h
is the extension that header files usually have, but that's just a convention, you can give them any extension you want.