The C++ Programming Language, 4th Edition

28. Metaprogramming

Trips to fairly unknown regions should be made twice; once to make mistakes and once to correct them.

– John Steinbeck

• Introduction

• Type Functions

Type Aliases; Type Predicates; Selecting a Function; Traits

• Control Structures

Selection; Iteration and Recursion; When to Use Metaprogramming

• Conditional Definition: Enable_if

Use of Enable_if; Implementing Enable_if; Enable_if and Concepts; More Enable_if Examples

• A Compile-Time List: Tuple

A Simple Output Function; Element Access; make_tuple

• Variadic Templates

A Type-Safe printf(); Technical Details; Forwarding; The Standard-Library tuple

• SI Units Example

Units; Quantitys; Unit Literals; Utility Functions

• Advice

28.1. Introduction

Programming that manipulates ...