// Copyright 2002 The Trustees of Indiana University. // Use, modification and distribution is subject to the Boost Software // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // Boost.MultiArray Library // Authors: Ronald Garcia // Jeremy Siek // Andrew Lumsdaine // See http://www.boost.org/libs/multi_array for documentation. #ifndef FOR_EACH_HPP #define FOR_EACH_HPP // // for_each.hpp - Writing an algorithm to transform each element of // a multi_array // #include "boost/type.hpp" template <typename Array, typename Element, typename Functor> void for_each (const boost::type<Element>& type_dispatch, Array A, Functor& xform) { for_each(type_dispatch,A.begin(),A.end(),xform); } template <typename Element, typename Functor> void for_each (const boost::type<Element>&,Element& Val, Functor& xform) { Val = xform(Val); } template <typename Element, typename Iterator, typename Functor> void for_each (const boost::type<Element>& type_dispatch, Iterator begin, Iterator end, Functor& xform) { while (begin != end) { for_each(type_dispatch,*begin,xform); ++begin; } } template <typename Array, typename Functor> void for_each (Array& A, Functor xform) { // Dispatch to the proper function for_each(boost::type<typename Array::element>(),A.begin(),A.end(),xform); } #endif // FOR_EACH_HPP