C++ Generic Toolbox is a header-only namespace which aims at being included in any cpp project. This toolbox gathers a collection of function which aims at simplifying the management of common objects.
"barLength" is not a member of the GenericToolbox::ProgressBar anymore, replace it with "maxBarLength" which I suppose is the new naming, as it tasks the value from PROGRESS_BAR_LENGTH as "barLength" did before
"barLength" is not a member of the GenericToolbox::ProgressBar anymore, replace it with "maxBarLength" which I suppose is the new naming, as it tasks the value from PROGRESS_BAR_LENGTH as "barLength" did before