Ad hoc polymorphism

“Ad hoc polymorphism”即“特别多态”。关于“Ad hoc”，在后文中会有解释。

维基百科Ad hoc polymorphism

The term ad hoc in this context is not intended to be pejorative; it refers simply to the fact that this type of polymorphism is not a fundamental feature of the type system.

包括两种：

• Function overloading
• Operator overloading