Added boost header

test/external/boost/exception/detail/exception_ptr.hpp

@@ -0,0 +1,503 @@
+//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
+
+//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)
+
+#ifndef UUID_618474C2DE1511DEB74A388C56D89593
+#define UUID_618474C2DE1511DEB74A388C56D89593
+#if defined(__GNUC__) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
+#pragma GCC system_header
+#endif
+#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
+#pragma warning(push,1)
+#endif
+
+#include <boost/config.hpp>
+#ifdef BOOST_NO_EXCEPTIONS
+#error This header requires exception handling to be enabled.
+#endif
+#include <boost/exception/exception.hpp>
+#include <boost/exception/info.hpp>
+#include <boost/exception/diagnostic_information.hpp>
+#include <boost/exception/detail/type_info.hpp>
+#include <boost/exception/detail/clone_current_exception.hpp>
+#include <boost/shared_ptr.hpp>
+#include <stdexcept>
+#include <new>
+#include <ios>
+#include <cstdlib>
+
+namespace
+boost
+    {
+    class exception_ptr;
+    BOOST_ATTRIBUTE_NORETURN void rethrow_exception( exception_ptr const & );
+    exception_ptr current_exception();
+
+    class
+    exception_ptr
+        {
+        typedef boost::shared_ptr<exception_detail::clone_base const> impl;
+        impl ptr_;
+        friend void rethrow_exception( exception_ptr const & );
+        typedef exception_detail::clone_base const * (impl::*unspecified_bool_type)() const;
+        public:
+        exception_ptr()
+            {
+            }
+        explicit
+        exception_ptr( impl const & ptr ):
+            ptr_(ptr)
+            {
+            }
+        bool
+        operator==( exception_ptr const & other ) const
+            {
+            return ptr_==other.ptr_;
+            }
+        bool
+        operator!=( exception_ptr const & other ) const
+            {
+            return ptr_!=other.ptr_;
+            }
+        operator unspecified_bool_type() const
+            {
+            return ptr_?&impl::get:0;
+            }
+        };
+
+    template <class T>
+    inline
+    exception_ptr
+    copy_exception( T const & e )
+        {
+        try
+            {
+            throw enable_current_exception(e);
+            }
+        catch(
+        ... )
+            {
+            return current_exception();
+            }
+        }
+
+#ifndef BOOST_NO_RTTI
+    typedef error_info<struct tag_original_exception_type,std::type_info const *> original_exception_type;
+
+    inline
+    std::string
+    to_string( original_exception_type const & x )
+        {
+        return x.value()->name();
+        }
+#endif
+
+    namespace
+    exception_detail
+        {
+        struct
+        bad_alloc_:
+            boost::exception,
+            std::bad_alloc
+                {
+                ~bad_alloc_() throw() { }
+                };
+
+        struct
+        bad_exception_:
+            boost::exception,
+            std::bad_exception
+                {
+                ~bad_exception_() throw() { }
+                };
+
+        template <class Exception>
+        exception_ptr
+        get_static_exception_object()
+            {
+            Exception ba;
+            exception_detail::clone_impl<Exception> c(ba);
+            c <<
+                throw_function(BOOST_CURRENT_FUNCTION) <<
+                throw_file(__FILE__) <<
+                throw_line(__LINE__);
+            static exception_ptr ep(shared_ptr<exception_detail::clone_base const>(new exception_detail::clone_impl<Exception>(c)));
+            return ep;
+            }
+
+        template <class Exception>
+        struct
+        exception_ptr_static_exception_object
+            {
+            static exception_ptr const e;
+            };
+
+        template <class Exception>
+        exception_ptr const
+        exception_ptr_static_exception_object<Exception>::
+        e = get_static_exception_object<Exception>();
+        }
+
+#if defined(__GNUC__)
+# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
+#  pragma GCC visibility push (default)
+# endif
+#endif
+    class
+    unknown_exception:
+        public boost::exception,
+        public std::exception
+        {
+        public:
+
+        unknown_exception()
+            {
+            }
+
+        explicit
+        unknown_exception( std::exception const & e )
+            {
+            add_original_type(e);
+            }
+
+        explicit
+        unknown_exception( boost::exception const & e ):
+            boost::exception(e)
+            {
+            add_original_type(e);
+            }
+
+        ~unknown_exception() throw()
+            {
+            }
+
+        private:
+
+        template <class E>
+        void
+        add_original_type( E const & e )
+            {
+#ifndef BOOST_NO_RTTI
+            (*this) << original_exception_type(&typeid(e));
+#endif
+            }
+        };
+#if defined(__GNUC__)
+# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
+#  pragma GCC visibility pop
+# endif
+#endif
+
+    namespace
+    exception_detail
+        {
+        template <class T>
+        class
+        current_exception_std_exception_wrapper:
+            public T,
+            public boost::exception
+            {
+            public:
+
+            explicit
+            current_exception_std_exception_wrapper( T const & e1 ):
+                T(e1)
+                {
+                add_original_type(e1);
+                }
+
+            current_exception_std_exception_wrapper( T const & e1, boost::exception const & e2 ):
+                T(e1),
+                boost::exception(e2)
+                {
+                add_original_type(e1);
+                }
+
+            ~current_exception_std_exception_wrapper() throw()
+                {
+                }
+
+            private:
+
+            template <class E>
+            void
+            add_original_type( E const & e )
+                {
+#ifndef BOOST_NO_RTTI
+                (*this) << original_exception_type(&typeid(e));
+#endif
+                }
+            };
+
+#ifdef BOOST_NO_RTTI
+        template <class T>
+        boost::exception const *
+        get_boost_exception( T const * )
+            {
+            try
+                {
+                throw;
+                }
+            catch(
+            boost::exception & x )
+                {
+                return &x;
+                }
+            catch(...)
+                {
+                return 0;
+                }
+            }
+#else
+        template <class T>
+        boost::exception const *
+        get_boost_exception( T const * x )
+            {
+            return dynamic_cast<boost::exception const *>(x);
+            }
+#endif
+
+        template <class T>
+        inline
+        exception_ptr
+        current_exception_std_exception( T const & e1 )
+            {
+            if( boost::exception const * e2 = get_boost_exception(&e1) )
+                return boost::copy_exception(current_exception_std_exception_wrapper<T>(e1,*e2));
+            else
+                return boost::copy_exception(current_exception_std_exception_wrapper<T>(e1));
+            }
+
+        inline
+        exception_ptr
+        current_exception_unknown_exception()
+            {
+            return boost::copy_exception(unknown_exception());
+            }
+
+        inline
+        exception_ptr
+        current_exception_unknown_boost_exception( boost::exception const & e )
+            {
+            return boost::copy_exception(unknown_exception(e));
+            }
+
+        inline
+        exception_ptr
+        current_exception_unknown_std_exception( std::exception const & e )
+            {
+            if( boost::exception const * be = get_boost_exception(&e) )
+                return current_exception_unknown_boost_exception(*be);
+            else
+                return boost::copy_exception(unknown_exception(e));
+            }
+
+        inline
+        exception_ptr
+        current_exception_impl()
+            {
+            exception_detail::clone_base const * e=0;
+            switch(
+            exception_detail::clone_current_exception(e) )
+                {
+                case exception_detail::clone_current_exception_result::
+                success:
+                    {
+                    BOOST_ASSERT(e!=0);
+                    return exception_ptr(shared_ptr<exception_detail::clone_base const>(e));
+                    }
+                case exception_detail::clone_current_exception_result::
+                bad_alloc:
+                    {
+                    BOOST_ASSERT(!e);
+                    return exception_detail::exception_ptr_static_exception_object<bad_alloc_>::e;
+                    }
+                case exception_detail::clone_current_exception_result::
+                bad_exception:
+                    {
+                    BOOST_ASSERT(!e);
+                    return exception_detail::exception_ptr_static_exception_object<bad_exception_>::e;
+                    }
+                default:
+                    BOOST_ASSERT(0);
+                case exception_detail::clone_current_exception_result::
+                not_supported:
+                    {
+                    BOOST_ASSERT(!e);
+                    try
+                        {
+                        throw;
+                        }
+                    catch(
+                    exception_detail::clone_base & e )
+                        {
+                        return exception_ptr(shared_ptr<exception_detail::clone_base const>(e.clone()));
+                        }
+                    catch(
+                    std::domain_error & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::invalid_argument & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::length_error & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::out_of_range & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::logic_error & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::range_error & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::overflow_error & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::underflow_error & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::ios_base::failure & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::runtime_error & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::bad_alloc & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+#ifndef BOOST_NO_TYPEID
+                    catch(
+                    std::bad_cast & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::bad_typeid & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+#endif
+                    catch(
+                    std::bad_exception & e )
+                        {
+                        return exception_detail::current_exception_std_exception(e);
+                        }
+                    catch(
+                    std::exception & e )
+                        {
+                        return exception_detail::current_exception_unknown_std_exception(e);
+                        }
+                    catch(
+                    boost::exception & e )
+                        {
+                        return exception_detail::current_exception_unknown_boost_exception(e);
+                        }
+                    catch(
+                    ... )
+                        {
+                        return exception_detail::current_exception_unknown_exception();
+                        }
+                    }
+                }
+            }
+        }
+
+    inline
+    exception_ptr
+    current_exception()
+        {
+        exception_ptr ret;
+        try
+            {
+            ret=exception_detail::current_exception_impl();
+            }
+        catch(
+        std::bad_alloc & )
+            {
+            ret=exception_detail::exception_ptr_static_exception_object<exception_detail::bad_alloc_>::e;
+            }
+        catch(
+        ... )
+            {
+            ret=exception_detail::exception_ptr_static_exception_object<exception_detail::bad_exception_>::e;
+            }
+        BOOST_ASSERT(ret);
+        return ret;
+        }
+
+    BOOST_ATTRIBUTE_NORETURN
+    inline
+    void
+    rethrow_exception( exception_ptr const & p )
+        {
+        BOOST_ASSERT(p);
+        p.ptr_->rethrow();
+        BOOST_ASSERT(0);
+        std::abort();
+        }
+
+    inline
+    std::string
+    diagnostic_information( exception_ptr const & p )
+        {
+        if( p )
+            try
+                {
+                rethrow_exception(p);
+                }
+            catch(
+            ... )
+                {
+                return current_exception_diagnostic_information();
+                }
+        return "<empty>";
+        }
+
+    inline
+    std::string
+    to_string( exception_ptr const & p )
+        {
+        std::string s='\n'+diagnostic_information(p);
+        std::string padding("  ");
+        std::string r;
+        bool f=false;
+        for( std::string::const_iterator i=s.begin(),e=s.end(); i!=e; ++i )
+            {
+            if( f )
+                r+=padding;
+            char c=*i;
+            r+=c;
+            f=(c=='\n');
+            }
+        return r;
+        }
+    }
+
+#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
+#pragma warning(pop)
+#endif
+#endif