C++ header inclusion

Question

Although I include the header file of a class in my implementation like:

#include<Utility.h>

I still get fatal error: Utility.h: No such file or directory

Is there any idea why? Utility.h and Utility.cpp in my current project folder

for <> vs "", check this question: http://stackoverflow.com/questions/21593/what-is-the-difference-between-include-filename-and-include-filename — codeling, Aug 22 '13 at 11:34
Does your compiler looks in the directory where the header is? — Thanushan, Aug 22 '13 at 11:35
If you tell your compiler to look in your current directly, such as with `-I .` or `/I .` (depending on your compiler), then it will add the current directory to the `<>` search list. — mah, Aug 22 '13 at 11:36
@AvbAvb You people don't read beginner C++ tutorials, do you. — , Aug 22 '13 at 11:36
Did you want the standard C++ header 'utility' which has std::pair and the like? In which case you should `#include ` without the .h EDIT: I just reread the question and clearly you didn't... — Mike Vine, Aug 22 '13 at 11:38

score 0 · Answer 1 · edited Aug 22 '13 at 11:54

0

#include "Utility.h"

This is the way to include a .h file that you wrote and is in your project.

edited Aug 22 '13 at 11:54

James Kanze

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answered Aug 22 '13 at 11:42

Emanuela

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score 0 · Answer 2 · answered Aug 22 '13 at 11:54

#include <file>
This variant is used for system header files. It searches for a file named file in a standard list of system directories. 

#include "file"
This variant is used for header files of your own program. It searches for a file named file first in the directory containing the current file, then in the quote directories and then the same directories used for <file>.

C++ header inclusion

2 Answers2