include protection incomplete in foreach.hpp

[Manfred Weis <manfredweis@…>]

foreach.hpp only checks

#ifndef BOOST_FOREACH

but does not

#define BOOST_FOREACH

(besides it should be BOOST_FOREACH_HPP for the sake of consistency)

[Eric Niebler]

You must not have looked very hard if you think that foreach.hpp doesn't #define BOOST_FOREACH.

[Manfred Weis <manfredweis@…>]

I agree, I only checked for common style of include guard ;-)