Boolean parameter can be useful (for DRY-ness, etc.), but to prevent any misunderstandings, I almost always introduce descriptive constants in such cases: co

Boolean parameter can be useful (for DRY-ness, etc.), but to prevent any misunderstandings, I almost always introduce descriptive constants in such cases: const bool SOMETHING = false; const bool OTHERTHING = true; and use them strictly for such parameter. When there is a default parameter value, sometimes even only one constant can be enough (for non-default variant description).