Does gcc's STL support rvalue references now?
I know Visual Studio 2010's standard library has been rewritten to support rvalue references, which boosts its performance considerably.
Does the standard library implementation of gcc 4.4 (and ab开发者_Python百科ove) support rvalue references?
I found this from the STL of gcc 4.4 :
#ifdef __GXX_EXPERIMENTAL_CXX0X__
_Vector_base(_Vector_base&& __x)
: _M_impl(__x._M_get_Tp_allocator())
{
this->_M_impl._M_start = __x._M_impl._M_start;
this->_M_impl._M_finish = __x._M_impl._M_finish;
this->_M_impl._M_end_of_storage = __x._M_impl._M_end_of_storage;
__x._M_impl._M_start = 0;
__x._M_impl._M_finish = 0;
__x._M_impl._M_end_of_storage = 0;
}
#endif
GCC supports rvalue references. Unfortunately, the libstc++ page doesn't say if the library implementation takes advantage of that.
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