Method who

Exercises/Modules/Chapter 15/Soln15_03/Animals.cpp:11–14

Return string describing the animal

// Return string describing the animal
std::string Animal::who() const
{
  return "My name is " + m_name + ". My weight is " + std::to_string(m_weight) + " lbs.";
}

// Sheep constructors
Sheep::Sheep(std::string_view name, unsigned weight)