How to import external .hpp file?

Question

i want to achieve this:

I have some definitions in ah header, for example:

#define myVariable 0x01

This.h file is placed somewhere on my PC for example in C:\MyProgram, MyProgram.exe is in the same folder. I want to be able to change directly myVariable and this change would be effective even if i don't recompile the.exe , like the h file is external to this exe and not internal/compiled in it.

What is the simplest way to achieve this? Thanks !

Answer 1

This is not how header files work. Really simplified: when you compile your program the lines with #include gets replaced with the actual contents of the header file, it is just copied in. So what's in there is there to stay.

What you need is to read a file with for example std::ifstream where the file is located somewhere the program is allowed to read it.