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epoc32/include/stdapis/boost/mpl/aux_/integral_wrapper.hpp
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:27:01 +0100
branchSymbian2
changeset 3 e1b950c65cb4
permissions -rw-r--r--
Attempt to represent the S^2->S^3 header reorganisation as a series of "hg rename" operations 
     1 

     2 // Copyright Aleksey Gurtovoy 2000-2006

     3 //

     4 // Distributed under the Boost Software License, Version 1.0. 

     5 // (See accompanying file LICENSE_1_0.txt or copy at 

     6 // http://www.boost.org/LICENSE_1_0.txt)

     7 //

     8 // See http://www.boost.org/libs/mpl for documentation.

     9 

    10 // $Source: /cvsroot/boost/boost/boost/mpl/aux_/integral_wrapper.hpp,v $

    11 // $Date: 2006/11/08 21:44:30 $

    12 // $Revision: 1.10.14.1 $

    13 

    14 // NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION!

    15 

    16 #include <boost/mpl/integral_c_tag.hpp>

    17 #include <boost/mpl/aux_/static_cast.hpp>

    18 #include <boost/mpl/aux_/nttp_decl.hpp>

    19 #include <boost/mpl/aux_/config/static_constant.hpp>

    20 #include <boost/mpl/aux_/config/workaround.hpp>

    21 

    22 #include <boost/preprocessor/cat.hpp>

    23 

    24 #if !defined(AUX_WRAPPER_NAME)

    25 #   define AUX_WRAPPER_NAME BOOST_PP_CAT(AUX_WRAPPER_VALUE_TYPE,_)

    26 #endif

    27 

    28 #if !defined(AUX_WRAPPER_PARAMS)

    29 #   define AUX_WRAPPER_PARAMS(N) BOOST_MPL_AUX_NTTP_DECL(AUX_WRAPPER_VALUE_TYPE, N)

    30 #endif

    31 

    32 #if !defined(AUX_WRAPPER_INST)

    33 #   if BOOST_WORKAROUND(__MWERKS__, <= 0x2407)

    34 #       define AUX_WRAPPER_INST(value) AUX_WRAPPER_NAME< value >

    35 #   else 

    36 #       define AUX_WRAPPER_INST(value) BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE::AUX_WRAPPER_NAME< value >

    37 #   endif

    38 #endif

    39 

    40 BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN

    41 

    42 template< AUX_WRAPPER_PARAMS(N) >

    43 struct AUX_WRAPPER_NAME

    44 {

    45     BOOST_STATIC_CONSTANT(AUX_WRAPPER_VALUE_TYPE, value = N);

    46 // agurt, 08/mar/03: SGI MIPSpro C++ workaround, have to #ifdef because some 

    47 // other compilers (e.g. MSVC) are not particulary happy about it

    48 #if BOOST_WORKAROUND(__EDG_VERSION__, <= 238)

    49     typedef struct AUX_WRAPPER_NAME type;

    50 #else

    51     typedef AUX_WRAPPER_NAME type;

    52 #endif

    53     typedef AUX_WRAPPER_VALUE_TYPE value_type;

    54     typedef integral_c_tag tag;

    55 

    56 // have to #ifdef here: some compilers don't like the 'N + 1' form (MSVC),

    57 // while some other don't like 'value + 1' (Borland), and some don't like

    58 // either

    59 #if BOOST_WORKAROUND(__EDG_VERSION__, <= 243)

    60  private:

    61     BOOST_STATIC_CONSTANT(AUX_WRAPPER_VALUE_TYPE, next_value = BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (N + 1)));

    62     BOOST_STATIC_CONSTANT(AUX_WRAPPER_VALUE_TYPE, prior_value = BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (N - 1)));

    63  public:

    64     typedef AUX_WRAPPER_INST(next_value) next;

    65     typedef AUX_WRAPPER_INST(prior_value) prior;

    66 #elif BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x561)) \

    67     || BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(502)) \

    68     || BOOST_WORKAROUND(__HP_aCC, <= 53800)

    69     typedef AUX_WRAPPER_INST( BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (N + 1)) ) next;

    70     typedef AUX_WRAPPER_INST( BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (N - 1)) ) prior;

    71 #else

    72     typedef AUX_WRAPPER_INST( BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (value + 1)) ) next;

    73     typedef AUX_WRAPPER_INST( BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (value - 1)) ) prior;

    74 #endif

    75 

    76     // enables uniform function call syntax for families of overloaded 

    77     // functions that return objects of both arithmetic ('int', 'long',

    78     // 'double', etc.) and wrapped integral types (for an example, see 

    79     // "mpl/example/power.cpp")

    80     operator AUX_WRAPPER_VALUE_TYPE() const { return static_cast<AUX_WRAPPER_VALUE_TYPE>(this->value); } 

    81 };

    82 

    83 #if !defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION)

    84 template< AUX_WRAPPER_PARAMS(N) >

    85 AUX_WRAPPER_VALUE_TYPE const AUX_WRAPPER_INST(N)::value;

    86 #endif

    87 

    88 BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE

    89 

    90 #undef AUX_WRAPPER_NAME

    91 #undef AUX_WRAPPER_PARAMS

    92 #undef AUX_WRAPPER_INST

    93 #undef AUX_WRAPPER_VALUE_TYPE
test