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Solution

Here is the solution to the problem in the previous lesson.

We'll cover the following...

Explanation

We applied the following changes::

  • We turned struct into a class and kept only the necessary functions as public
  • With having m_a private and not exposing a setter, we cannot change m_a from the outside world, only with assignment.
  • We turned getA() into a const function so that we cannot accidentally change any member in the function.