|
sl@0
|
1 |
|
|
sl@0
|
2 |
#ifndef BOOST_MPL_NEGATE_HPP_INCLUDED
|
|
sl@0
|
3 |
#define BOOST_MPL_NEGATE_HPP_INCLUDED
|
|
sl@0
|
4 |
|
|
sl@0
|
5 |
// Copyright Aleksey Gurtovoy 2000-2004
|
|
sl@0
|
6 |
//
|
|
sl@0
|
7 |
// Distributed under the Boost Software License, Version 1.0.
|
|
sl@0
|
8 |
// (See accompanying file LICENSE_1_0.txt or copy at
|
|
sl@0
|
9 |
// http://www.boost.org/LICENSE_1_0.txt)
|
|
sl@0
|
10 |
//
|
|
sl@0
|
11 |
// See http://www.boost.org/libs/mpl for documentation.
|
|
sl@0
|
12 |
|
|
sl@0
|
13 |
// $Source: /cvsroot/boost/boost/boost/mpl/negate.hpp,v $
|
|
sl@0
|
14 |
// $Date: 2004/09/07 09:06:08 $
|
|
sl@0
|
15 |
// $Revision: 1.4 $
|
|
sl@0
|
16 |
|
|
sl@0
|
17 |
#include <boost/mpl/integral_c.hpp>
|
|
sl@0
|
18 |
#include <boost/mpl/aux_/msvc_eti_base.hpp>
|
|
sl@0
|
19 |
#include <boost/mpl/aux_/na_spec.hpp>
|
|
sl@0
|
20 |
#include <boost/mpl/aux_/lambda_support.hpp>
|
|
sl@0
|
21 |
#include <boost/mpl/aux_/config/eti.hpp>
|
|
sl@0
|
22 |
#include <boost/mpl/aux_/config/integral.hpp>
|
|
sl@0
|
23 |
#include <boost/mpl/aux_/config/static_constant.hpp>
|
|
sl@0
|
24 |
|
|
sl@0
|
25 |
namespace boost { namespace mpl {
|
|
sl@0
|
26 |
|
|
sl@0
|
27 |
template< typename Tag > struct negate_impl;
|
|
sl@0
|
28 |
|
|
sl@0
|
29 |
template< typename T > struct negate_tag
|
|
sl@0
|
30 |
{
|
|
sl@0
|
31 |
typedef typename T::tag type;
|
|
sl@0
|
32 |
};
|
|
sl@0
|
33 |
|
|
sl@0
|
34 |
template<
|
|
sl@0
|
35 |
typename BOOST_MPL_AUX_NA_PARAM(N)
|
|
sl@0
|
36 |
>
|
|
sl@0
|
37 |
struct negate
|
|
sl@0
|
38 |
#if !defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
|
|
sl@0
|
39 |
: negate_impl<
|
|
sl@0
|
40 |
typename negate_tag<N>::type
|
|
sl@0
|
41 |
>::template apply<N>::type
|
|
sl@0
|
42 |
#else
|
|
sl@0
|
43 |
: aux::msvc_eti_base< typename apply_wrap1<
|
|
sl@0
|
44 |
negate_impl< typename negate_tag<N>::type >
|
|
sl@0
|
45 |
, N
|
|
sl@0
|
46 |
>::type >::type
|
|
sl@0
|
47 |
#endif
|
|
sl@0
|
48 |
{
|
|
sl@0
|
49 |
BOOST_MPL_AUX_LAMBDA_SUPPORT(1, negate, (N))
|
|
sl@0
|
50 |
};
|
|
sl@0
|
51 |
|
|
sl@0
|
52 |
BOOST_MPL_AUX_NA_SPEC(1, negate)
|
|
sl@0
|
53 |
|
|
sl@0
|
54 |
|
|
sl@0
|
55 |
#if defined(BOOST_MPL_CFG_NO_NESTED_VALUE_ARITHMETIC)
|
|
sl@0
|
56 |
namespace aux {
|
|
sl@0
|
57 |
template< typename T, T n > struct negate_wknd
|
|
sl@0
|
58 |
{
|
|
sl@0
|
59 |
BOOST_STATIC_CONSTANT(T, value = -n);
|
|
sl@0
|
60 |
typedef integral_c<T,value> type;
|
|
sl@0
|
61 |
};
|
|
sl@0
|
62 |
}
|
|
sl@0
|
63 |
#endif
|
|
sl@0
|
64 |
|
|
sl@0
|
65 |
template<>
|
|
sl@0
|
66 |
struct negate_impl<integral_c_tag>
|
|
sl@0
|
67 |
{
|
|
sl@0
|
68 |
#if defined(BOOST_MPL_CFG_NO_NESTED_VALUE_ARITHMETIC)
|
|
sl@0
|
69 |
template< typename N > struct apply
|
|
sl@0
|
70 |
: aux::negate_wknd< typename N::value_type, N::value >
|
|
sl@0
|
71 |
#else
|
|
sl@0
|
72 |
template< typename N > struct apply
|
|
sl@0
|
73 |
: integral_c< typename N::value_type, (-N::value) >
|
|
sl@0
|
74 |
#endif
|
|
sl@0
|
75 |
{
|
|
sl@0
|
76 |
};
|
|
sl@0
|
77 |
};
|
|
sl@0
|
78 |
|
|
sl@0
|
79 |
}}
|
|
sl@0
|
80 |
|
|
sl@0
|
81 |
#endif // BOOST_MPL_NEGATE_HPP_INCLUDED
|