Re: [boost] [Foreach] Proposal to simplify using Boost.Foreach withmaps

Christian Schladetsch wrote:

Is there any performance difference between

BOOST_FOREACH_PAIR(K const &key, V &val, map) { }

and

BOOST_FOREACH(Map::reference ref, map) { }

I haven't tested this specific case but in previous discussions and tests on this subject, I found these extra for-loops of fixed "length" 1 hidden in the macro expansion were optimized well by popular compilers, so the hit may be negligible. Pete