add_course_exercise(NAME classes_and_objects MODULE 06_oop_basics STANDARD 26
    SOURCES src/classes_and_objects.cpp test/classes_and_objects_test.cpp)
add_course_exercise(NAME constructors MODULE 06_oop_basics STANDARD 26
    SOURCES src/constructors.cpp test/constructors_test.cpp)
add_course_exercise(NAME inheritance MODULE 06_oop_basics STANDARD 26
    SOURCES src/inheritance.cpp test/inheritance_test.cpp)
add_course_exercise(NAME polymorphism MODULE 06_oop_basics STANDARD 26
    SOURCES src/polymorphism.cpp src/inheritance.cpp test/polymorphism_test.cpp)