// --------------------------------------------------

//

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

// (C) Copyright Gennaro Prota                 2003 - 2006.

//

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

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

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

//

// -----------------------------------------------------------



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

//

//  $Revision: 41369 $ $Date: 2007-11-25 13:07:19 -0500 (Sun, 25 Nov 2007) $ - $Name$



#ifndef BOOST_DYNAMIC_BITSET_CONFIG_HPP_GP_20040424

#define BOOST_DYNAMIC_BITSET_CONFIG_HPP_GP_20040424



#include "boost/config.hpp"

#include "boost/detail/workaround.hpp"



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

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

# define BOOST_OLD_IOSTREAMS

#endif



// this should be in the config system some day

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

#define BOOST_DYNAMIC_BITSET_GNUC_VERSION  (  __GNUC__       * 100 * 100     \

                                            + __GNUC_MINOR__ * 100)



// no-op function to workaround gcc bug c++/8419

//

namespace boost { namespace detail {

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

}}



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

                                          BOOST_TESTED_AT(30300))

# define BOOST_DYNAMIC_BITSET_WRAP_CONSTANT(expr) \

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

#else

# define BOOST_DYNAMIC_BITSET_WRAP_CONSTANT(expr) (expr)

#endif



//

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

                             || (defined BOOST_NO_MEMBER_TEMPLATE_FRIENDS)

#define BOOST_DYNAMIC_BITSET_DONT_USE_FRIENDS

#endif



// if we can't use friends then we simply expose private members

//

#if defined(BOOST_DYNAMIC_BITSET_DONT_USE_FRIENDS)

#define BOOST_DYNAMIC_BITSET_PRIVATE public

#else

#define BOOST_DYNAMIC_BITSET_PRIVATE private

#endif



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

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

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

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

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

// to its parameter c.

//

#if defined (BOOST_USE_FACET)



#define BOOST_DYNAMIC_BITSET_CTYPE_FACET(ch, name, loc)     \

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

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



#define BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, c)             \

           (fac.widen(c))

#else



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

#define BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, c)          c



#endif



#endif // include guard

