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Remove dynamic_cast in init_internal_shared_once()

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[SVN r44744]
This commit is contained in:
Daniel Frey
2008-04-23 19:32:44 +00:00
parent 77f2d3f614
commit 8b3907ae81
1 changed files with 1 additions and 4 deletions
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5
include/boost/enable_shared_from_this.hpp
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@@ -23,14 +23,11 @@ namespace boost
template<class T> class enable_shared_from_this template<class T> class enable_shared_from_this
{ {
// dynamic cast to template type doesn't work in constructor, so we have
// to use lazy initialization
void init_internal_shared_once() const void init_internal_shared_once() const
{ {
if( !owned() && _internal_shared_count.empty() ) if( !owned() && _internal_shared_count.empty() )
{ {
T * p = dynamic_cast<T *>(const_cast<enable_shared_from_this*>(this)); detail::shared_count( (void*)0, detail::sp_deleter_wrapper() ).swap(_internal_shared_count);
detail::shared_count( p, detail::sp_deleter_wrapper() ).swap(_internal_shared_count);
_internal_weak_count = _internal_shared_count; _internal_weak_count = _internal_shared_count;
} }
} }