In your clone of this repository, find the 2.2-complex exercise and list the files
$ cd archer2-cpp/exercises/2.2-complex$ ls Makefile complex.cpp complex.hpp test.cpp
The files complex.hpp and complex.cpp contain a partially working complex number class and test.cpp holds some basic unit tests.
You can compile and run with:
$ make && ./test
g++ --std=c++14 -I../include -c -o complex.o complex.cpp
g++ --std=c++14 -I../include -c -o test.o test.cpp
g++ complex.o test.o -o test
===============================================================================
All tests passed (34 assertions in 6 test cases)
But to get to this point you need to complete the code and fix a few bugs!