Re: [boost] [thread] locks.hpp double declaration of unique_lock(unique_lock&& other)

Subject: Re: [boost] [thread] locks.hpp double declaration of unique_lock(unique_lock&& other)
From: Frank Mori Hess (frank.hess_at_[hidden])
Date: 2009-01-21 13:18:05

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On Wednesday 21 January 2009 12:06 pm, vicente.botet wrote:
> Hi in lines  248-255 of the file boost/thread/locks.hpp we found the
> unique_lock(unique_lock&& other) declaration twice one withoth explicit and
> defined and the other with explicit an undefined.

FWIW, the declarations are different: the second takes an upgrade_lock, not a 
unique_lock.

> #ifdef BOOST_HAS_RVALUE_REFS
>         unique_lock(unique_lock&& other):
>             m(other.m),is_locked(other.is_locked)
>         {
>             other.is_locked=false;
>             other.m=0;
>         }
>         explicit unique_lock(upgrade_lock<Mutex>&& other);
>
> Could you say me why this is nesded?
> _____________________
> Vicente Juan Botet Escribá
> _______________________________________________
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