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-rw-r--r--boost/cast.hpp103
1 files changed, 8 insertions, 95 deletions
diff --git a/boost/cast.hpp b/boost/cast.hpp
index 2615d183fa..ab452bdf16 100644
--- a/boost/cast.hpp
+++ b/boost/cast.hpp
@@ -1,107 +1,20 @@
-// boost cast.hpp header file ----------------------------------------------//
-
-// (C) Copyright Kevlin Henney and Dave Abrahams 1999.
+// boost cast.hpp header file
+//
+// (C) Copyright Antony Polukhin 2014.
+//
// 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.
-// 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
+// This is a DEPRECATED header file!
+// Use <boost/polymorphic_cast.hpp> or <boost/numeric/conversion/cast.hpp> instead
#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.
-//
-// 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
-{
-// 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;
- }
-
-// 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
-
+# include <boost/polymorphic_cast.hpp>
# include <boost/numeric/conversion/cast.hpp>
#endif // BOOST_CAST_HPP