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Threads-Devel : |
Subject: Re: [Threads-devel] Threads and copy constructors...
From: oneflewover (thedeerhunter1978_at_[hidden])
Date: 2012-02-21 17:13:17
On 2012-02-21 09:38:37 +0000, Anthony Williams said:
> Which compiler are you using? If your compiler doesn't support rvalue
> references then there are lots of copies because various functions take
> things by value.
>
> The thread constructor: thread(F)
> which calls: make_thread_info(F)
> which constructs a thread_data<F>: thread_data(F)
> which constructs the thread_data<F> member.
>
> => 4 copies. With optimization enabled, some of these can be optimized out.
Thanks Anthony. That explains the copies. My gcc compiler does not
yet support rvalue references. Will upgrade soon.