Re: [Boost-users] [foreach] BOOST_FOREACH question...

"Dmitry Vinogradov" wrote:

To be short: it's not necessary.

BTW, begin() and end() for an empty list are valid. You can't dereference them, but they are valid. So one can use them for comparison. And BOOST_FOREACH does.

I've had problems with standard 'for' loops when using empty containers: for (i = mylist.begin() ; i != mylist.end() ; i++) By problems I mean core-dumps, memory leaks, etc. These problems went away when I used a size check: if (!mylist.empty()) for (i = mylist.begin() ; i != mylist.end() ; i++) This leads me to believe that begin() and end() are not valid, or is there another way to explain this?