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simplifies code (minor changes)

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[SVN r38202]
This commit is contained in:
Tobias Schwinger
2007-07-13 16:26:50 +00:00
parent f598633cd0
commit 909825a34f
1 changed files with 12 additions and 18 deletions
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30
include/boost/fusion/functional/invocation/invoke_function_object.hpp
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@ -19,8 +19,6 @@
#include <boost/utility/result_of.hpp>
#include <boost/blank.hpp>
#include <boost/type_traits/remove_reference.hpp>
#include <boost/type_traits/remove_const.hpp>
@ -59,10 +57,7 @@ namespace boost { namespace fusion
int N = result_of::size<Sequence>::value,
bool RandomAccess = traits::is_random_access<Sequence>::value
>
struct invoke_function_object_impl
{
typedef boost::blank result;
};
struct invoke_function_object_impl;
template <class Sequence, int N>
struct invoke_function_object_param_types;
@ -77,10 +72,11 @@ namespace boost { namespace fusion
namespace result_of
{
template <class Function, class Sequence> struct invoke_function_object
: detail::invoke_function_object_impl<
{
typedef typename detail::invoke_function_object_impl<
typename boost::remove_reference<Function>::type, Sequence
>::result
{ };
>::result_type type;
};
}
template <class Function, class Sequence>
@ -117,16 +113,15 @@ namespace boost { namespace fusion
{
public:
struct result
typedef typename boost::result_of<
#define M(z,j,data) \
typename boost::remove_reference< \
typename result_of::value_at_c<Sequence,j>::type >::type
: boost::result_of< Function (BOOST_PP_ENUM(N,M,~)) >
Function (BOOST_PP_ENUM(N,M,~)) >::type result_type;
#undef M
{ };
template <class F>
static inline typename result::type
static inline result_type
call(F & f, Sequence & s)
{
#define M(z,j,data) fusion::at_c<j>(s)
@ -141,13 +136,12 @@ namespace boost { namespace fusion
private:
typedef invoke_function_object_param_types<Sequence,N> seq;
public:
struct result
: boost::result_of<
Function (BOOST_PP_ENUM_PARAMS(N,typename seq::T)) >
{ };
typedef typename boost::result_of<
Function (BOOST_PP_ENUM_PARAMS(N,typename seq::T))
>::type result_type;
template <class F>
static inline typename result::type
static inline result_type
call(F & f, Sequence & s)
{
#if N > 0