Table of Contents

1. Introduction
2. Separate Compilation
3. Modules
4. Namespaces
5. Error Handling
6. Function Arguments and Return Values

3.1 Introduction

• What is the difference between a declaration and definition in C++?
• Can you have multiple declarations for a function/type?
• Can you have multiple definitions for a function/type?

3.2 Separate Compilation

• What is the purpose of header files (.h)?
• What is separate compilation in C++?
• What are the arguments for taking advantage of separate compilation in C++?
• What is a translation unit in C++?
• What is an include guard**, and why is it needed? Show an example with** class Vector { /* ... */ };
• What is #pragma once, and how does it differ from include guards?
• How does the linker resolve function calls across multiple translation units?
• When should you not inline a function?