Subject: Re: [boost] [smart_ptr] !defined(BOOST_NO_CXX11_SMART_PTR) does notimply !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
From: Peter Dimov (lists_at_[hidden])
Date: 2013-02-08 10:36:46
Michel Morin wrote:
> `!defined(BOOST_NO_CXX11_SMART_PTR)` does not necessarily mean that
> the compiler support of rvalue references is available. For example,
How could the standard library have std::unique_ptr without the compiler
supporting rvalue references?
> when I use shared_ptr (on trunk) with clang + libc++ in a C++03 mode,
> I get warnings something like
> warning: rvalue references are a C++11 extension [-Wc++11-extensions]
> shared_ptr & operator=( std::unique_ptr<Y, D> && r )
Looks like rvalue references are available, but as an extension.
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