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//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_0552D49838DD11DD90146B8956D89593
#define UUID_0552D49838DD11DD90146B8956D89593
#include <boost/config.hpp>
#include <boost/exception/get_error_info.hpp>
#include <boost/exception/detail/exception_ptr_base.hpp>
#include <boost/utility/enable_if.hpp>
#include <exception>
#include <sstream>
#include <string>
namespace
boost
{
namespace
exception_detail
{
template <class T>
struct
enable_boost_exception_overload
{
struct yes { char q[100]; };
typedef char no;
static yes check(exception const *);
static no check(...);
enum e { value=sizeof(check((T*)0))==sizeof(yes) };
};
template <class T>
struct
enable_std_exception_overload
{
struct yes { char q[100]; };
typedef char no;
static yes check(std::exception const *);
static no check(...);
enum e { value = !enable_boost_exception_overload<T>::value && sizeof(check((T*)0))==sizeof(yes) };
};
inline
char const *
get_diagnostic_information( exception const & x )
{
if( error_info_container * c=x.data_.get() )
#ifndef BOOST_NO_EXCEPTIONS
try
{
#endif
return c->diagnostic_information();
#ifndef BOOST_NO_EXCEPTIONS
}
catch(...)
{
}
#endif
return 0;
}
inline
std::string
diagnostic_information_impl( boost::exception const * be, std::exception const * se )
{
BOOST_ASSERT(be||se);
#ifndef BOOST_NO_RTTI
if( !se )
se = dynamic_cast<std::exception const *>(be);
if( !be )
be = dynamic_cast<boost::exception const *>(se);
#endif
std::ostringstream tmp;
if( be )
{
if( char const * const * f=get_error_info<throw_file>(*be) )
{
tmp << *f;
if( int const * l=get_error_info<throw_line>(*be) )
tmp << '(' << *l << "): ";
}
tmp << "Throw in function ";
if( char const * const * fn=get_error_info<throw_function>(*be) )
tmp << *fn;
else
tmp << "(unknown)";
tmp << '\n';
}
#ifndef BOOST_NO_RTTI
tmp << std::string("Dynamic exception type: ") <<
(be?BOOST_EXCEPTION_DYNAMIC_TYPEID(*be):BOOST_EXCEPTION_DYNAMIC_TYPEID(*se)).name() << '\n';
#endif
if( se )
tmp << "std::exception::what: " << se->what() << '\n';
if( be )
if( char const * s=exception_detail::get_diagnostic_information(*be) )
if( *s )
tmp << s;
return tmp.str();
}
}
template <class T>
inline
typename enable_if<exception_detail::enable_boost_exception_overload<T>,std::string>::type
diagnostic_information( T const & e )
{
return exception_detail::diagnostic_information_impl(&e,0);
}
template <class T>
inline
typename enable_if<exception_detail::enable_std_exception_overload<T>,std::string>::type
diagnostic_information( T const & e )
{
return exception_detail::diagnostic_information_impl(0,&e);
}
}
#ifndef BOOST_NO_EXCEPTIONS
#include <boost/exception/current_exception_cast.hpp>
namespace
boost
{
inline
std::string
current_exception_diagnostic_information()
{
boost::exception const * be=current_exception_cast<boost::exception const>();
std::exception const * se=current_exception_cast<std::exception const>();
if( be || se )
return exception_detail::diagnostic_information_impl(be,se);
else
return "No diagnostic information available.";
}
inline
std::string
diagnostic_information( exception_detail::exception_ptr_base const & p )
{
if( !p._empty() )
try
{
p._rethrow();
}
catch(
... )
{
return current_exception_diagnostic_information();
}
return "<empty>";
}
}
#endif
#endif
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