Policies with Templates

Lecture 5 - Slide 36 : 40

A type parameter can be used to parameterize a class or function with a class that represents a given policy

For instance a set of functions that compare data in a certain way

Why use templates for policies
- As an alternative to a function parameter, or to an instance of a class with virtual functions
- Use of templates will typically give more efficient programs
  - Compile time substitutions

See details in §13.4 in The C++ Prog. Lang. (3. edition)