Include header file in different directory in c++

Question

I\'ve been learning c++ and encountered the following question: I have a directory structure like:

 - current directory

  - Makefile

  - include

     - he         


        

Answer 1

You can either add a -I option to the command line to tell the compiler to look there for header files. If you have header files in include/ directory, then this command should work for you.

gcc -Iinclude/

Since, you are using makefile, you can include this option in CFLAGS macro in your makefile.

CFLAGS = -Iinclude/ -c -Wall

OR

You can include header files using #include "../include/header.h".