On Fri, Jul 31, 2015 at 3:11 PM, Alex Merry <alex.me...@kde.org> wrote:
> On Thursday 30 July 2015 20:46:24 Mark Gaiser wrote: > > On Thu, Jul 23, 2015 at 9:59 PM, Mark Gaiser <mark...@gmail.com> wrote: > > > Hi, > > > > > > The wiki page doesn't state it explicitly [1]. > > > > > > The status of move semantics when searching for the status of N3053 on > the > > > compilers that frameworks support: > > > GCC 4.6 [2] (frameworks requires 4.5) > > > CLANG 3.0 [3] (frameworks requires 3.1) > > > Visual Studio 2010/2012 [4] (it has some (most?) move semantics with > N3053 > > > being implemented in 2015. But has it enough till 2012 for normal move > > > semantics? That i don't know.) > > > > > > Allowing this unconditionally (with the exception of *this since that's > > > apparently fixed in GCC 4.8.1) seems possible since the compiler > support > > > seems there and the operation - when implemented - can give quite nice > > > benefits. > > Our only language constraints are what is allowed by the compilers we > support. > > I know that VS 2013 has most move semantics support except that the > compiler > can't generate default move constructors and move assignment operators. > > The VS 2010 compiler provides rvalue references, but not always as > effeciently > as you'd like (it doesn't properly account for temporary values, if I > understand the explanation correctly). What I'm not certain about is the > standard library support on this front, but I think it's basically absent > from > 2010 and mostly present in 2012. > > So when you say "move semantics", what does that encompass? You can use > rvalue > references in 2010 just fine, but someone would need to check that Qt > detects > that properly and provides appropriate overloads of various methods, and > you > may not get std::move (if you use qMove, it will degrade properly in > std::move's absence, though). > > Alex > _______________________________________________ > Kde-frameworks-devel mailing list > Kde-frameworks-devel@kde.org > https://mail.kde.org/mailman/listinfo/kde-frameworks-devel > Hi Alex, What i mean with "move semantics" are mainly the following features: - std::move - move copy constructor - move assignment operator I know std::move is in vs2010, i'm just not so sure about the move copy and assignment operator. Same for clang. I can't really find where clang started to support these things.
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