Disclaimer: ‘stack’ is not part of the c++ standard to my knowledge, there we have ASDVs (automatic storage duration variables). ABI might define stack. Note that sometimes these are passed in registers, which I believe is OK in your case. Define a CPS (continuation-passing style) factory method: class A { public: template<typename F, typename… Args> … Read more
Author answer: I just emailed Mr Van der Linden, and here is what he said: Yes, I agree with the people who answered on stack overflow. I don’t know for certain, because I never used the language B, but it seems highly plausible to me that “auto” ended up in C because it was in … Read more
There is no limit on how much automatic storage any std API uses. They could all require 12 terabytes of stack space. However, that API only requires Cpp17DefaultInsertable, and your implementation creates an extra instance over what is required by the constructor. Unless it is gated behind detecting the object is trivially ctorable and copyable, … Read more
Automatic tells me something about the lifetime of an object: specifically that it is bound automatically to the enclosing scope, and will be destroyed automatically when that scope exits. Dynamic tells me that the lifetime of an object is not controlled automatically by the compiler, but is under my direct control. Stack is an overloaded … Read more