--- a/epoc32/include/stdapis/boost/cast.hpp Wed Mar 31 12:27:01 2010 +0100
+++ b/epoc32/include/stdapis/boost/cast.hpp Wed Mar 31 12:33:34 2010 +0100
@@ -1,51 +1,107 @@
-// © Copyright Fernando Luis Cacciola Carballal 2000-2004
-// Use, modification, and distribution is subject to 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)
+// boost cast.hpp header file ----------------------------------------------//
+
+// (C) Copyright Kevlin Henney and Dave Abrahams 1999.
+// 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/conversion for Documentation.
-// See library home page at http://www.boost.org/libs/numeric/conversion
-//
-// Contact the author at: fernando_cacciola@hotmail.com
-//
-//
// Revision History
+// 23 JUn 05 numeric_cast removed and redirected to the new verion (Fernando Cacciola)
+// 02 Apr 01 Removed BOOST_NO_LIMITS workarounds and included
+// <boost/limits.hpp> instead (the workaround did not
+// actually compile when BOOST_NO_LIMITS was defined in
+// any case, so we loose nothing). (John Maddock)
+// 21 Jan 01 Undid a bug I introduced yesterday. numeric_cast<> never
+// worked with stock GCC; trying to get it to do that broke
+// vc-stlport.
+// 20 Jan 01 Moved BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS to config.hpp.
+// Removed unused BOOST_EXPLICIT_TARGET macro. Moved
+// boost::detail::type to boost/type.hpp. Made it compile with
+// stock gcc again (Dave Abrahams)
+// 29 Nov 00 Remove nested namespace cast, cleanup spacing before Formal
+// Review (Beman Dawes)
+// 19 Oct 00 Fix numeric_cast for floating-point types (Dave Abrahams)
+// 15 Jul 00 Suppress numeric_cast warnings for GCC, Borland and MSVC
+// (Dave Abrahams)
+// 30 Jun 00 More MSVC6 wordarounds. See comments below. (Dave Abrahams)
+// 28 Jun 00 Removed implicit_cast<>. See comment below. (Beman Dawes)
+// 27 Jun 00 More MSVC6 workarounds
+// 15 Jun 00 Add workarounds for MSVC6
+// 2 Feb 00 Remove bad_numeric_cast ";" syntax error (Doncho Angelov)
+// 26 Jan 00 Add missing throw() to bad_numeric_cast::what(0 (Adam Levar)
+// 29 Dec 99 Change using declarations so usages in other namespaces work
+// correctly (Dave Abrahams)
+// 23 Sep 99 Change polymorphic_downcast assert to also detect M.I. errors
+// as suggested Darin Adler and improved by Valentin Bonnard.
+// 2 Sep 99 Remove controversial asserts, simplify, rename.
+// 30 Aug 99 Move to cast.hpp, replace value_cast with numeric_cast,
+// place in nested namespace.
+// 3 Aug 99 Initial version
+
+#ifndef BOOST_CAST_HPP
+#define BOOST_CAST_HPP
+
+# include <boost/config.hpp>
+# include <boost/assert.hpp>
+# include <typeinfo>
+# include <boost/type.hpp>
+# include <boost/limits.hpp>
+# include <boost/detail/select_type.hpp>
+
+// It has been demonstrated numerous times that MSVC 6.0 fails silently at link
+// time if you use a template function which has template parameters that don't
+// appear in the function's argument list.
//
-// 19 Nov 2001 Syntatic changes as suggested by Darin Adler (Fernando Cacciola)
-// 08 Nov 2001 Fixes to accommodate MSVC (Fernando Cacciola)
-// 04 Nov 2001 Fixes to accommodate gcc2.92 (Fernando Cacciola)
-// 30 Oct 2001 Some fixes suggested by Daryle Walker (Fernando Cacciola)
-// 25 Oct 2001 Initial boostification (Fernando Cacciola)
-// 23 Jan 2004 Inital add to cvs (post review)s
-//
-#ifndef BOOST_NUMERIC_CONVERSION_CAST_25OCT2001_HPP
-#define BOOST_NUMERIC_CONVERSION_CAST_25OCT2001_HPP
-
-#include <boost/detail/workaround.hpp>
-
-#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x582))
-
-# include<boost/numeric/conversion/detail/old_numeric_cast.hpp>
-
-#else
-
-#include <boost/type.hpp>
-#include <boost/numeric/conversion/converter.hpp>
+// TODO: Add this to config.hpp?
+# if defined(BOOST_MSVC) && BOOST_MSVC < 1300
+# define BOOST_EXPLICIT_DEFAULT_TARGET , ::boost::type<Target>* = 0
+# else
+# define BOOST_EXPLICIT_DEFAULT_TARGET
+# endif
namespace boost
{
- template<typename Target, typename Source>
- inline
- Target numeric_cast ( Source arg )
- {
- typedef boost::numeric::converter<Target,Source> Converter ;
- return Converter::convert(arg);
- }
+// See the documentation for descriptions of how to choose between
+// static_cast<>, dynamic_cast<>, polymorphic_cast<> and polymorphic_downcast<>
+
+// polymorphic_cast --------------------------------------------------------//
+
+ // Runtime checked polymorphic downcasts and crosscasts.
+ // Suggested in The C++ Programming Language, 3rd Ed, Bjarne Stroustrup,
+ // section 15.8 exercise 1, page 425.
+
+ template <class Target, class Source>
+ inline Target polymorphic_cast(Source* x BOOST_EXPLICIT_DEFAULT_TARGET)
+ {
+ Target tmp = dynamic_cast<Target>(x);
+ if ( tmp == 0 ) throw std::bad_cast();
+ return tmp;
+ }
- using numeric::bad_numeric_cast;
+// polymorphic_downcast ----------------------------------------------------//
+
+ // BOOST_ASSERT() checked polymorphic downcast. Crosscasts prohibited.
+
+ // WARNING: Because this cast uses BOOST_ASSERT(), it violates
+ // the One Definition Rule if used in multiple translation units
+ // where BOOST_DISABLE_ASSERTS, BOOST_ENABLE_ASSERT_HANDLER
+ // NDEBUG are defined inconsistently.
+
+ // Contributed by Dave Abrahams
+
+ template <class Target, class Source>
+ inline Target polymorphic_downcast(Source* x BOOST_EXPLICIT_DEFAULT_TARGET)
+ {
+ BOOST_ASSERT( dynamic_cast<Target>(x) == x ); // detect logic error
+ return static_cast<Target>(x);
+ }
+
+# undef BOOST_EXPLICIT_DEFAULT_TARGET
} // namespace boost
-#endif
+# include <boost/numeric/conversion/cast.hpp>
-
-#endif
+#endif // BOOST_CAST_HPP