mirror of
https://github.com/boostorg/mpl.git
synced 2025-08-03 23:04:33 +02:00
joint_view initial check in
[SVN r16279]
This commit is contained in:
Aleksey Gurtovoy
141
include/boost/mpl/aux_/joint_iter.hpp
Normal file
141
include/boost/mpl/aux_/joint_iter.hpp
Normal file
@@ -0,0 +1,141 @@
|
||||
//-----------------------------------------------------------------------------
|
||||
// boost mpl/aux_/joint_iter.hpp header file
|
||||
// See http://www.boost.org for updates, documentation, and revision history.
|
||||
//-----------------------------------------------------------------------------
|
||||
//
|
||||
// Copyright (c) 2000-02
|
||||
// Aleksey Gurtovoy
|
||||
//
|
||||
// Permission to use, copy, modify, distribute and sell this software
|
||||
// and its documentation for any purpose is hereby granted without fee,
|
||||
// provided that the above copyright notice appears in all copies and
|
||||
// that both the copyright notice and this permission notice appear in
|
||||
// supporting documentation. No representations are made about the
|
||||
// suitability of this software for any purpose. It is provided "as is"
|
||||
// without express or implied warranty.
|
||||
|
||||
#ifndef BOOST_MPL_AUX_JOINT_ITER_HPP_INCLUDED
|
||||
#define BOOST_MPL_AUX_JOINT_ITER_HPP_INCLUDED
|
||||
|
||||
#include "boost/mpl/aux_/lambda_spec.hpp"
|
||||
#include "boost/mpl/aux_/config/ctps.hpp"
|
||||
#include "boost/type_traits/is_same.hpp"
|
||||
|
||||
namespace boost {
|
||||
namespace mpl {
|
||||
namespace aux {
|
||||
|
||||
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
|
||||
|
||||
template<
|
||||
typename Iterator1
|
||||
, typename LastIterator1
|
||||
, typename Iterator2
|
||||
>
|
||||
struct joint_iter
|
||||
{
|
||||
typedef Iterator1 base;
|
||||
typedef typename base::category category;
|
||||
typedef joint_iter<
|
||||
typename base::next
|
||||
, LastIterator1
|
||||
, Iterator2
|
||||
> next;
|
||||
|
||||
typedef typename base::type type;
|
||||
};
|
||||
|
||||
template<
|
||||
typename LastIterator1
|
||||
, typename Iterator2
|
||||
>
|
||||
struct joint_iter<LastIterator1,LastIterator1,Iterator2>
|
||||
{
|
||||
typedef Iterator2 base;
|
||||
typedef typename base::category category;
|
||||
typedef joint_iter<
|
||||
LastIterator1
|
||||
, LastIterator1
|
||||
, typename base::next
|
||||
> next;
|
||||
|
||||
typedef typename base::type type;
|
||||
};
|
||||
|
||||
|
||||
#else
|
||||
|
||||
// forward decl. for 'joint_iter_impl'
|
||||
template<
|
||||
typename Iterator1
|
||||
, typename LastIterator1
|
||||
, typename Iterator2
|
||||
>
|
||||
struct joint_iter;
|
||||
|
||||
template< bool > struct joint_iter_impl
|
||||
{
|
||||
template<
|
||||
typename Iterator1
|
||||
, typename LastIterator1
|
||||
, typename Iterator2
|
||||
>
|
||||
struct result_
|
||||
{
|
||||
typedef Iterator1 base;
|
||||
// agurt, 16/nov/02: have to use 'Iterator1' instead of 'base' below
|
||||
// to prevent 'base' and 'mpl::base' conflict on MSVC 6.0
|
||||
typedef typename Iterator1::category category;
|
||||
typedef joint_iter<
|
||||
typename Iterator1::next
|
||||
, LastIterator1
|
||||
, Iterator2
|
||||
> next;
|
||||
|
||||
typedef typename Iterator1::type type;
|
||||
};
|
||||
};
|
||||
|
||||
template<> struct joint_iter_impl<true>
|
||||
{
|
||||
template<
|
||||
typename Iterator1
|
||||
, typename LastIterator1
|
||||
, typename Iterator2
|
||||
>
|
||||
struct result_
|
||||
{
|
||||
typedef Iterator2 base;
|
||||
typedef typename Iterator2::category category;
|
||||
typedef joint_iter<
|
||||
LastIterator1
|
||||
, LastIterator1
|
||||
, typename Iterator2::next
|
||||
> next;
|
||||
|
||||
typedef typename Iterator2::type type;
|
||||
};
|
||||
};
|
||||
|
||||
|
||||
template<
|
||||
typename Iterator1
|
||||
, typename LastIterator1
|
||||
, typename Iterator2
|
||||
>
|
||||
struct joint_iter
|
||||
: joint_iter_impl< is_same<Iterator1,LastIterator1>::value >
|
||||
::template result_<Iterator1,LastIterator1,Iterator2>
|
||||
{
|
||||
};
|
||||
|
||||
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
||||
|
||||
} // namespace aux
|
||||
|
||||
BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(3, aux::joint_iter)
|
||||
|
||||
} // namespace mpl
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_MPL_AUX_JOINT_ITER_HPP_INCLUDED
|
||||
50
include/boost/mpl/joint_view.hpp
Normal file
50
include/boost/mpl/joint_view.hpp
Normal file
@@ -0,0 +1,50 @@
|
||||
//-----------------------------------------------------------------------------
|
||||
// boost mpl/joint_view.hpp header file
|
||||
// See http://www.boost.org for updates, documentation, and revision history.
|
||||
//-----------------------------------------------------------------------------
|
||||
//
|
||||
// Copyright (c) 2000-02
|
||||
// Aleksey Gurtovoy
|
||||
//
|
||||
// Permission to use, copy, modify, distribute and sell this software
|
||||
// and its documentation for any purpose is hereby granted without fee,
|
||||
// provided that the above copyright notice appears in all copies and
|
||||
// that both the copyright notice and this permission notice appear in
|
||||
// supporting documentation. No representations are made about the
|
||||
// suitability of this software for any purpose. It is provided "as is"
|
||||
// without express or implied warranty.
|
||||
|
||||
#ifndef BOOST_MPL_JOINT_VIEW_HPP_INCLUDED
|
||||
#define BOOST_MPL_JOINT_VIEW_HPP_INCLUDED
|
||||
|
||||
#include "boost/mpl/aux_/joint_iter.hpp"
|
||||
#include "boost/mpl/begin_end.hpp"
|
||||
#include "boost/mpl/aux_/void_spec.hpp"
|
||||
|
||||
namespace boost {
|
||||
namespace mpl {
|
||||
|
||||
template<
|
||||
typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Sequence1_)
|
||||
, typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Sequence2_)
|
||||
>
|
||||
struct joint_view
|
||||
{
|
||||
private:
|
||||
typedef typename begin<Sequence1_>::type first1_;
|
||||
typedef typename end<Sequence1_>::type last1_;
|
||||
typedef typename begin<Sequence2_>::type first2_;
|
||||
typedef typename end<Sequence2_>::type last2_;
|
||||
|
||||
public:
|
||||
struct tag;
|
||||
typedef typename aux::joint_iter<first1_,last1_,first2_> begin;
|
||||
typedef typename aux::joint_iter<last1_,last1_,last2_> end;
|
||||
};
|
||||
|
||||
BOOST_MPL_AUX_VOID_SPEC(2, joint_view)
|
||||
|
||||
} // namespace mpl
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_MPL_JOINT_VIEW_HPP_INCLUDED
|
||||
35
test/joint_view.cpp
Normal file
35
test/joint_view.cpp
Normal file
@@ -0,0 +1,35 @@
|
||||
//-----------------------------------------------------------------------------
|
||||
// boost mpl/test/joint_view.cpp source file
|
||||
// See http://www.boost.org for updates, documentation, and revision history.
|
||||
//-----------------------------------------------------------------------------
|
||||
//
|
||||
// Copyright (c) 2001-02
|
||||
// Aleksey Gurtovoy
|
||||
//
|
||||
// Permission to use, copy, modify, distribute and sell this software
|
||||
// and its documentation for any purpose is hereby granted without fee,
|
||||
// provided that the above copyright notice appears in all copies and
|
||||
// that both the copyright notice and this permission notice appear in
|
||||
// supporting documentation. No representations are made about the
|
||||
// suitability of this software for any purpose. It is provided "as is"
|
||||
// without express or implied warranty.
|
||||
|
||||
#include "boost/mpl/joint_view.hpp"
|
||||
#include "boost/mpl/range_c.hpp"
|
||||
#include "boost/mpl/equal.hpp"
|
||||
#include "boost/static_assert.hpp"
|
||||
|
||||
namespace mpl = boost::mpl;
|
||||
|
||||
int main()
|
||||
{
|
||||
typedef mpl::joint_view<
|
||||
mpl::range_c<int,0,10>
|
||||
, mpl::range_c<int,10,15>
|
||||
> numbers;
|
||||
|
||||
typedef mpl::range_c<int,0,15> answer;
|
||||
BOOST_STATIC_ASSERT((mpl::equal<numbers,answer>::type::value));
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user