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result_of and polymorphic function obj compatibility

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[SVN r37962]
This commit is contained in:
Dan Marsden
2007-06-11 07:01:05 +00:00
parent 414b87dbdb
commit 0fcbc5b467
42 changed files with 477 additions and 410 deletions
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8
include/boost/fusion/algorithm/iteration/detail/fold.hpp
View File

@ -11,6 +11,7 @@
#include <boost/fusion/iterator/value_of.hpp>
#include <boost/fusion/iterator/next.hpp>
#include <boost/fusion/iterator/distance.hpp>
#include <boost/utility/result_of.hpp>
namespace boost { namespace fusion {
namespace result_of
@ -25,14 +26,13 @@ namespace detail
{
template <typename Value, typename State>
struct apply
{
typedef typename F::template result<Value, State>::type type;
};
: boost::result_of<F(Value,State)>
{};
};
template <typename Iterator, typename State, typename F>
struct fold_apply
: mpl::apply<apply_fold_result<F>, typename result_of::value_of<Iterator>::type, State>
: boost::result_of<F(typename result_of::value_of<Iterator>::type, State)>
{};
template <typename First, typename Last, typename State, typename F>

11
include/boost/fusion/algorithm/transformation/detail/replace.hpp
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@ -43,16 +43,19 @@ namespace boost { namespace fusion { namespace detail
replacer(T const& old_value, T const& new_value)
: old_value(old_value), new_value(new_value) {}
template <typename U>
struct result
template<typename Params>
struct result;
template <typename U1, typename U2>
struct result<replacer<U1>(U2)>
{
typedef typename
mpl::if_<is_convertible<T, U>, U, U const&>::type
mpl::if_<is_convertible<T, U2>, U2, U2 const&>::type
type;
};
template <typename U>
typename result<U>::type
typename result<replacer(U)>::type
operator()(U const& x) const
{
return replacer_helper<is_convertible<T, U>::value>::

9
include/boost/fusion/algorithm/transformation/detail/replace_if.hpp
View File

@ -43,8 +43,11 @@ namespace boost { namespace fusion { namespace detail
replacer_if(F f, T const& new_value)
: f(f), new_value(new_value) {}
template <typename U>
struct result
template<typename Params>
struct result;
template <typename F1, typename T1, typename U>
struct result<replacer_if<F1, T1>(U)>
{
typedef typename
mpl::if_<is_convertible<T, U>, U, U const&>::type
@ -52,7 +55,7 @@ namespace boost { namespace fusion { namespace detail
};
template <typename U>
typename result<U>::type
typename result<replacer_if(U)>::type
operator()(U const& x) const
{
return replacer_if_helper<is_convertible<T, U>::value>::