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Non-intrusive exception_ptr support for msvc 7.1/8.0/9.0 (thanks Anthony Williams)

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[SVN r65204]
This commit is contained in:
Emil Dotchevski
2010-09-03 02:03:15 +00:00
parent 5dbd4c8f32
commit 3b4cdfce47
7 changed files with 162 additions and 338 deletions
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3
include/boost/exception/detail/clone_current_exception.hpp
View File

@ -21,7 +21,8 @@ boost
{
int const success=0;
int const bad_alloc=1;
int const not_supported=2;
int const bad_exception=2;
int const not_supported=3;
}
class clone_base;

54
include/boost/exception/detail/exception_ptr.hpp
View File

@ -70,31 +70,38 @@ boost
{
};
template <int Dummy>
struct
bad_exception_:
boost::exception,
std::bad_exception
{
};
template <class Exception>
exception_ptr
get_bad_alloc()
get_static_exception_object()
{
bad_alloc_ ba;
exception_detail::clone_impl<bad_alloc_> c(ba);
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(new exception_detail::clone_impl<bad_alloc_>(c));
static exception_ptr ep(new exception_detail::clone_impl<Exception>(c));
return ep;
}
template <int Dummy>
template <class Exception>
struct
exception_ptr_bad_alloc
exception_ptr_static_exception_object
{
static exception_ptr const e;
};
template <int Dummy>
template <class Exception>
exception_ptr const
exception_ptr_bad_alloc<Dummy>::
e = get_bad_alloc<Dummy>();
exception_ptr_static_exception_object<Exception>::
e = get_static_exception_object<Exception>();
}
class
@ -259,7 +266,13 @@ boost
bad_alloc:
{
BOOST_ASSERT(!e);
return exception_detail::exception_ptr_bad_alloc<42>::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);
@ -346,7 +359,7 @@ boost
catch(
std::bad_exception & e )
{
return exception_detail::current_exception_std_exception(e);
return exception_detail::exception_ptr_static_exception_object<exception_detail::bad_exception_>::e;
}
catch(
std::exception & e )
@ -380,25 +393,12 @@ boost
catch(
std::bad_alloc & )
{
ret=exception_detail::exception_ptr_bad_alloc<42>::e;
ret=exception_detail::exception_ptr_static_exception_object<exception_detail::bad_alloc_>::e;
}
catch(
... )
{
try
{
ret=exception_detail::current_exception_std_exception(std::bad_exception());
}
catch(
std::bad_alloc & )
{
ret=exception_detail::exception_ptr_bad_alloc<42>::e;
}
catch(
... )
{
BOOST_ASSERT(0);
}
ret=exception_detail::exception_ptr_static_exception_object<exception_detail::bad_exception_>::e;
}
BOOST_ASSERT(ret);
return ret;