Re: [boost] std::launder and its usage in Boost

Niall Douglas wrote:

...

Surely laundering the address each time is rather bad for optimisation and codegen?

I mean, effectively launder invokes "escaped" during escape analysis right?

I honestly have no idea.

However, looking at https://godbolt.org/z/oKj5c5x7v, it doesn't seem so.

And in the case in which the address actually escapes, there doesn't seem to be any difference either: https://godbolt.org/z/j93oe3cr8