A huge thank you to all the contributors who are helping to make this course better and better day by day: @jakeheke75, @guoci, @leofracca, @ChenMiaoi, @AlanDeSmet, @indraneel-mondal, @Yuppdivyaj, @BiradarMayur2509, @Ali-Sda, @eltociear, @freakynit, @Wheest, @VaibhavSaraf, @LuccaT95, @ilovexyz, @kushnaryo8, @liyixin123, @Ingerdev, @eugenefil, @binary-manu, @dijkstracula, @arnimarj

General Improvements:

• Subsections now point to the right page
• Switched to TexLive2024
• Moved the first part of Basic Concepts I in a new lecture "Preparation"
• Provided the first draft of "Software Design" lectures

Introduction:

• Updated the book section
• Added language performance benchmarking
• Added a new quote on learning
• Added new references to Rust, including "Secure by Design: Google’s Perspective on Memory Safety"
• Added Cobol example to "Why Switching to a New Language is Hard?"

Preparation:

• Added the Zed editor
• Added C++23/26 compiler flags

Basic Concepts I:

• Added a new section about the C++ type system
• Minor improvements for the "Fundamental Types" section

Basic Concepts II:

• Added a couple of undefined behavior examples for integral types
• Added a new example of mixing signed/unsigned error (Chandler Carruth, CppCon 2016)
• Described the special value behavior for floating-point
• Added floating-point undefined behavior
• Slightly expanded the floating-point arithmetic properties section

Basic Concepts III:

• Added a [[deprecated]] attribute section
• Added C++26 auto _ unused variable

Basic Concepts IV:

• Improved initialization section, especially brace-initialization
• Added an example of undefined behavior for initialization
• Described undefined behavior for pointer arithmetic
• Improved the "sizeof" section
• Described the [[no_unique_address]] section
• Improved constexpr limitations section
• Added static keyword within constexpr functions C++23

Basic Concepts V:

• Added another examples of common macro problems

Object-Oriented Programming I:

• Slightly improved the copy constructor introduction

Object-Oriented Programming II:

• Improved "Object Layout" section

Templates and Meta-Programming I:

• Added C++26 static_assert with formatting
• Improved "Implicit Template Instantiation" section, thanks to @gouci
• Added a subsection related to "Template Instantiation"

Templates and Meta-Programming II:

• Improved the "variadic template" section + two more examples
• Added an example of variadic template applied to types
• Added two notes about function SFINAE limitations
• Removed "Class + Function" SFINAE
• Improved CTAD introduction

Debugging and Testing (previously Ecosystem I):

• Improved "Undefined Behavior Sanitizer" section
• Created a new section "Hardening Techniques"
• Added compiler warnings for Windows
• Improved the "static analysis" section and added msvc /analyse
• Added a new example of Cost of Software Defects
• Minor improved to the "Program Errors" section

Ecosystem:

• Removed Kite
• Added ugrep

Code Conventions:

• Improved the Naming section
• Described how to use clang-tidy to enforce a naming style
• Reorganized code convention list
• Added a personal comment on West/East notation

Utilities:

• Move std::span to this lecture
• Improved the "Time Measuring" section

Iterators, Containers, and Algorithms:

• Added a common error of iterator usage

Advanced Concepts I:

• Improved the "Undefined Behavior" section

Advanced Concepts II:

• Added Trivial infinite loop undefined behavior
• Added the reference "Enumerating Core Undefined Behavior"
• Added "Return Code", "Return Code and Exception Summary", and "std::expected" to "Recoverable Error Handing" section

Performance Optimizations I:

• Reformulated the "Basic Architecture Concepts" section
• Added "core-to-core latency and threads affinity" section
• Added Poisson solver complexity over time in the Moore's Law Limitations section
• Added Arm64 cache line size
• Added "Memory Ordering Model" section

Performance Optimizations II:

• Better explanation of loop unswitching
• Added assertion optimization example
• Improved data alignment section
• Better explanation of signed integer optimization and added an example
• Added a note related to stack data structure
• Improved function attribute section
• Improved function call section

Performance Optimizations III:

• Added ARM reference for BOLT optimization
• Added -fopt-info to compiler optimization flags
• Added -fassociative-math to floating point optimization flags
• Added Abseil and Frozen to std data structures replacement