I'd like to use the Big Integer Library (https://mattmccutchen.net/bigint/), but I have issues to use it. I'm using Xcode as compiler and I don't know how to include the library in my project files. When I drag all the files in the project directory and write the statement #include <BigInteger.hh>
on the top of the declaration of the main function, even whiteout any other code, I get lots of build error on the .hh and .cc file.
Can someone help me about how to include the library on my project.