Alan Birtles questions

Alan Birtles answers

• Why does shared_ptr<int> p; p=nullptr; compile?
• What is the proper evaluation order when assigning a value in a map?
• Can I define a generic wrapper class to detect writes to and reads from a specific variable in my code?
• Can't use std::format in c++20
• C++ Boost ASIO: initializing io_context inside class:
• Difference between std::move() and std::add_rvalue_reference()
• Will move from unique to shared pointer also initialize enable_shared_from_this
• Why can't a range be sorted in range-v3?
• Alternative to declaring a type alias inside a class
• Simple C++ Loop Not Benefitting from Multithreading