C++ Best Practices: 45ish Simple Rules with Specific Action Items for Better C++

Table of Contents
Introduction
About Best Practices
Use the Tools: Automated Tests
Use the Tools: Continuous Builds
Use the Tools: Compiler Warnings
Use the Tools: Static Analysis
Use the Tools: Sanitizers
Slow Down
Learn Another Language
const Everything That's Not constexpr
constexpr Everything Known at Compile Time
Prefer auto in Many Cases.
Prefer ranged-for Loop Syntax Over Old Loops
Use auto in ranged for loops
Prefer Algorithms Over Loops
Don't Be Afraid of Templates
Don't Copy and Paste Code
Follow the Rule of 0
If You Must Do Manual Resource Management, Follow the Rule of 5
Don't Invoke Undefined Behavior
Never Test for this To Be nullptr, It's UB
Never Test for A Reference To Be nullptr, It's UB
Avoid default In switch Statements
Prefer Scoped enums
Prefer if constexpr over SFINAE
Constrain Your Template Parameters With Concepts (C++20)
De-template-ize Your Generic Code
Use Lippincott Functions
Be Afraid of Global State
Make your interfaces hard to use wrong.
Consider If Using the API Wrong Invokes Undefined Behavior
Use [[nodiscard]] Liberally
Use Stronger Types
Don't return raw pointers
Prefer Stack Over Heap
No More new!
Know Your Containers
Avoid std::bind and std::function
Skip C++11
Don't Use initializer_list For Non-Trivial Types
Use the Tools: Build Generators
Use the Tools: Package Managers
Improving Build Time
Use the Tools: Multiple Compilers
Fuzzing and Mutating
Continue Your C++ Education
Always Initialize Your Values
Prefer Spaceships (C++20)
Understand consteval and constinit (C++20)
Be Aware of Custom Allocation And PMR
Consider Designated Initializers (C++20)
Thank You
Bonus: Understand The Lambda