Setting Include Paths

To set up your compiler to find header files in different directories, you need to specify the include paths using compiler flags. The exact flag depends on your compiler.

• For GCC and Clang, use the I flag followed by the directory path.
• For Microsoft Visual C++, use the /I flag followed by the directory path.

For example, if you have headers in a directory named "include" within your project directory, you would compile your code like this:

GCC/Clang:

1eg++ -I./include main.cpp

MSVC:

1cl /I.\include main.cpp

You can specify multiple include paths by using multiple -I or /I flags.

In your code, you can then use the #include directive with the header file name, without specifying the full path:

1#include "myheader.h"

The compiler will search for myheader.h in the specified include directories.

Many IDEs and build systems (like CMake) provide ways to set include paths in their project settings, so you don't have to specify them manually on each compile.