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Re: [std-proposals] Relocation in C++

From: Jens Maurer <Jens.Maurer_at_[hidden]>
Date: Fri, 6 May 2022 07:11:09 +0200
On 05/05/2022 23.10, Arthur O'Dwyer via Std-Proposals wrote:
> If you mean that today there's a way to end the lifetime of a /non/-trivially-destructible object without calling its destructor (and without just ending the execution of the whole C++ program), then I didn't know about that. What is that way?

Just re-use its memory for a different object:

#include <new>

struct A {

void f() {
  A a(5); // #1
  new (&a) A(6); // ends lifetime of object created at #1 by re-using its storage


Received on 2022-05-06 05:11:14