Re: [boost] [optional] get() misses optional r-value overload in contrast to operator* and value()

Matt Calabrese wrote:

On Fri, Mar 23, 2018 at 12:01 PM, Peter Dimov via Boost wrote:

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Interesting question. value() && returns T&&. The auto const& reference can't bind directly to T&&, because that's not an lvalue.

An lvalue-reference-to-const can bind to an rvalue (it's why you can pass an rvalue to a function that takes a "const T&").

You're right, it does bind directly. http://eel.is/c++draft/dcl.init.ref#5.3.1