Perform an action on each element of a foldable, discarding the result each time.Iteration is done from left to right, i.e. in the same order as when using fold_left. If the structure is not finite, this method will not terminate. More...
Louis Dionne 2013-2016 Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
