[Development] xcode emplace_back (was: QVector now has rvalue push_back)

[Gunnar Roth]

> Am 21.07.2015 um 19:14 schrieb Matthew Woehlke <mwoehlke.floss at gmail.com>:
> 
> Ergo, that implementation looks... suspicious, and *may* even be
> non-conforming. (Unless push_back is doing something really funky, which
> I somewhat doubt.) You may want to file a bug against that implementation.
this is the push_back implementaion, nothing special afaic see. Besides it s using move() for a rvalue ref which is don’t know why.
template <class _Tp, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
vector<_Tp, _Allocator>::push_back(value_type&& __x)
{
    if (this->__end_ < this->__end_cap())
    {
        __annotate_increase(1);
        __alloc_traits::construct(this->__alloc(),
                                  _VSTD::__to_raw_pointer(this->__end_),
                                  _VSTD::move(__x));
        ++this->__end_;
    }
    else
        __push_back_slow_path(_VSTD::move(__x));
}


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