11 Sep
2008
11 Sep
'08
8:29 a.m.
On Thu, Sep 11, 2008 at 9:34 AM, Gevorg Voskanyan <v_gevorg@yahoo.com> wrote:
Giovanni Piero Deretta wrote:
If you do not want to deal with move emulation (which I've found very brittle in complex expressions), a simple way to to gain the advantage of T::operator=(T rhs) even when assigning from lvalues is something like:
templateT destructive_copy(T& x) { using std::swap; T result; swap(result, x); return x; }
which relies on NRVO to eliminate expensive copies:
Shouldn't the last statement be return result; instead? Or maybe I am missing something?
Yes, of course :), sorry for the typo... -- gpd