Namespaces, Includes, and the Standard Library

A quick introduction to namespaces in C++, alongside the standard library and how we can access it

Ryan McCombe
Updated
Hello! I'm here to help you with any questions about this lesson. Feel free to ask me anything - whether it's about specific concepts, examples, or how to apply what you've learned!

Questions & Answers

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Why Use Namespaces in C++?
What are the benefits of using namespaces in C++? When should I use them in my code?
Multiple using Statements
Can I have multiple using statements for the same namespace in different scopes? What happens if I do?
Setting Include Paths
How do I set up my compiler to find header files in different directories?
Namespace Aliases
What is a namespace alias and when would I use one?
Header Include Order
Does the order of #include directives matter? If so, what's the correct order?
Explicit std:: Namespace
Why do you use explicit std:: namespace qualifiers in this lesson's code examples instead of 'using namespace std;'?