At Wed, 5 Jan 2011 12:20:16 +0000 (UTC), bernardH wrote:
Hi,
Howard Hinnant <howard.hinnant <at> gmail.com> writes:
I'm not sure if it is desirable though. It is an awful lot of if-checking added to the algorithm. All that checking would tend to penalize those clients not wanting to break out early.
Couldn't the checks for early breaks be removed at compile-time by using callable returning a convertible to bool instead of a bool ?
At least it appears to do so when returning a boost::mpl::bool_<false> with g++ at default optimization level.[*]
yeah, for some years I've been re-thinking the "early break from BGL algorithms" problem along these lines. I think it's an approach worth pursuing. -- Dave Abrahams BoostPro Computing http://www.boostpro.com