Re: [boost] [optional] little addition

27 Feb 2009


      On Feb 27, 2009, at 4:08 AM, Arno Schödl wrote:
...
I just started using boost::optional, and this proved to be  
generically useful, but I believe is currently not in boost::optional:
...
boost::optional< TMyValue > TryToGetT();
T t;
if( !optional_assign( t, TryToGetT () ) {
   ... other way to get t ...
}
instead of the more verbose:
boost::optional< TMyValue > TryToGetT();
T t;
So you dislike

   if ( !(t = TryToGetT()) )  {
      ...other way to get t ...
   }

For efficiency reasons?
--
David Abrahams
BoostPro Computing
http://boostpro.com