[boost] Re: Formal Review: FOREACH macro

From: David Abrahams (dave_at_[hidden])
Date: 2005-04-28 08:31:02

"Sam Saariste" <ss_march2001_at_[hidden]> writes:

> I have used it for more than 6 months now and have added it to my standard
> set of idioms. Once you get into the FOREACH mindset, you don't only want to
> use it for std::for_each type jobs but you would also want to use it for
> std::transform type ones. In situations where you can use push_back on a
> result container, FOREACH serves this purpose as it is. However, I have
> encountered situations where this was not possible and where I wanted a
> second macro, say FOREACH2, that iterates over 2 ranges simultaneously. I
> have had such a need on more than one occasion. One situation was as above
> and in other situations I had to combine the elements of two ranges.

Try using zip_iterator with BOOST_FOREACH.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com