valid include formats in C ?

[john2020]

hi

pls help me answer this question,asked for interview
Which of the following are valid include formats?

#include (file.h) and #include "file.h"

#include <file.h> and #include "file.h"

#include (file.h) and #include <file.h>

#include <file.h> and #include [file.h]

#include [file.h] and #include "file.h"

 

[M!k]

these are valid expressions:
#include <file.h> and #include "file.h"
where
<file.h> file.h is located in the compiler's include directory
"file.h" file.h is located in the local work (your source files) directory


Mik

 

[mobile-it]

#include <file.h> and #include "file.h"

the first one is that this header file is located in the "default" directory of your IDE or compiler the lastone is that you want to include a headerfile that is attached to the project you are currently building (or in the same directory as the .c file.

I hope this helps you out.