Classes

Comparing Member Functions with Nonmember Functions

Member functions automatically (by default) pass the implicit parameter by reference.
Nonmember functions automatically (by default) pass their parameters by value.

	Explicit Parameter	Implicit Parameter
Value Parameter (not changed)	Default Example: `void print(Employee)`	Use `const` Example: `void Employee::print()const`
Reference Parameter (can be changed)	Use & Example: `void raiseSalary(Employee & e, double p)`	Default Example: `void Employee::raiseSalary(double p)`