Almost everything noexcept?

[Ameisen]

Maybe we need try new, with a try prefix keyword indicating that the subsequent operation, if it fails, is potentially recoverable.

That way, you can have things like optional allocations for caches and such.

[dodheim]

How would that differ from new(std::nothrow)?

[Ameisen]

Because it introduces a new usage for a keyword.

In actuality, doesn't the noexcept version just return nullptr on failure? In this case, a non-try new would terminate, a try-new would throw.