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- // 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
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