The complexity argument is just not true. You do have to know this stuff in c++, you run into it all the time.
I wish I didn’t have to know about std::launder but I do
replies(2):
I wish I didn’t have to know about std::launder but I do
Problem 1: You might fail to initialize an object in memory correctly.
Solution 1: Constructors.
Problem 2: Now you cannot preallocate memory as in SLAB allocation since the constructor does an allocator call.
Solution 2: Placement new
Problem 3: Now the type system has led the compiler to assume your preallocated memory cannot change since you declared it const.
Solution 3: std::launder()
If it is not clear what I mean about placement new and const needing std::lauder(), see this:
https://miyuki.github.io/2016/10/21/std-launder.html
C has a very simple solution that avoids this chain. Use structured programming to initialize your objects correctly. You are not going to escape the need to do this with C++, but you are guaranteed to have to consider a great many things in C++ that would not have needed consideration in C since C avoided the slippery slope of syntactic sugar that C++ took.