1 // --------------------------------------------------

     2 //

     3 // (C) Copyright Chuck Allison and Jeremy Siek 2001 - 2002.

     4 // (C) Copyright Gennaro Prota                 2003 - 2004.

     5 //

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

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

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

     9 //

    10 // -----------------------------------------------------------

    11 

    12 //  See http://www.boost.org/libs/dynamic_bitset for documentation.

    13 

    14 

    15 #ifndef BOOST_DYNAMIC_BITSET_CONFIG_HPP_GP_20040424

    16 #define BOOST_DYNAMIC_BITSET_CONFIG_HPP_GP_20040424

    17 

    18 #include "boost/config.hpp"

    19 #include "boost/detail/workaround.hpp"

    20 

    21 // support for pre 3.0 libstdc++ - thanks Phil Edwards!

    22 #if defined (__STL_CONFIG_H) && !defined (__STL_USE_NEW_IOSTREAMS)

    23 # define BOOST_OLD_IOSTREAMS

    24 #endif

    25 

    26 // this should be in the config system some day

    27 // see http://lists.boost.org/MailArchives/boost/msg62291.php

    28 #define BOOST_DYNAMIC_BITSET_GNUC_VERSION  (  __GNUC__       * 100 * 100     \

    29                                             + __GNUC_MINOR__ * 100)

    30 

    31 // workaround for gcc bug c++/8419 - gps

    32 

    33 namespace boost { namespace detail {

    34     template <typename T> T make_non_const(T t) { return t; }

    35 }}

    36 

    37 #if defined(__GNUC__) && BOOST_WORKAROUND(BOOST_DYNAMIC_BITSET_GNUC_VERSION, \

    38                                           BOOST_TESTED_AT(30300))

    39 # define BOOST_DYNAMIC_BITSET_WRAP_CONSTANT(expr) \

    40          (boost::detail::make_non_const(expr))

    41 #else

    42 # define BOOST_DYNAMIC_BITSET_WRAP_CONSTANT(expr) (expr)

    43 #endif

    44 

    45 //

    46 #if (defined __BORLANDC__ && BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564)))  \

    47                              || (defined BOOST_NO_MEMBER_TEMPLATE_FRIENDS)

    48 #define BOOST_DYNAMIC_BITSET_DONT_USE_FRIENDS

    49 #endif

    50 

    51 // if we can't use friends then private members are exposed

    52 //

    53 #if defined(BOOST_DYNAMIC_BITSET_DONT_USE_FRIENDS)

    54 #define BOOST_DYNAMIC_BITSET_PRIVATE public

    55 #else

    56 #define BOOST_DYNAMIC_BITSET_PRIVATE private

    57 #endif

    58 

    59 // A couple of macros to cope with libraries without locale

    60 // support. The first macro must be used to declare a reference

    61 // to a ctype facet. The second one to widen a char by using

    62 // that ctype object. If facets and locales aren't available

    63 // the first macro is a no-op and the second one just expands

    64 // to its parameter c.

    65 //

    66 #if defined (BOOST_USE_FACET)

    67 

    68 #define BOOST_DYNAMIC_BITSET_CTYPE_FACET(ch, name, loc)     \

    69             const std::ctype<ch> & name =                   \

    70             BOOST_USE_FACET(std::ctype<ch>, loc)         /**/

    71 

    72 #define BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, c)             \

    73            (fac.widen(c))

    74 #else

    75 

    76 #define BOOST_DYNAMIC_BITSET_CTYPE_FACET(ch, name, loc) /**/

    77 #define BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, c)          c

    78 

    79 #endif

    80 

    81 #endif // include guard