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any_iterator now compiles without RTTI.

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This commit is contained in:
Neil Groves
2014-05-07 00:13:09 +01:00
parent 5f2560f753
commit ec3c98bc25
1 changed files with 15 additions and 5 deletions
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20
include/boost/range/detail/any_iterator_wrapper.hpp
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@ -19,6 +19,16 @@ namespace boost
{
namespace range_detail
{
template<typename TargetT, typename SourceT>
TargetT& polymorphic_ref_downcast(SourceT& source)
{
#ifdef BOOST_NO_RTTI
return static_cast<TargetT&>(source);
#else
return *boost::polymorphic_downcast<TargetT*>(&source);
#endif
}
template<class Reference, class T>
Reference dereference_cast(T& x)
{
@ -192,7 +202,7 @@ namespace boost
virtual bool equal(const any_single_pass_iterator_interface<Reference, Buffer>& other) const
{
return m_it == boost::polymorphic_downcast<const any_single_pass_iterator_wrapper*>(&other)->m_it;
return m_it == range_detail::polymorphic_ref_downcast<const any_single_pass_iterator_wrapper>(other).m_it;
}
virtual reference dereference() const
@ -284,7 +294,7 @@ namespace boost
virtual bool equal(const any_single_pass_iterator_interface<Reference, Buffer>& other) const
{
return m_it == boost::polymorphic_downcast<const any_forward_iterator_wrapper*>(&other)->m_it;
return m_it == range_detail::polymorphic_ref_downcast<const any_forward_iterator_wrapper>(other).m_it;
}
virtual reference dereference() const
@ -381,7 +391,7 @@ namespace boost
virtual bool equal(const any_single_pass_iterator_interface<Reference, Buffer>& other) const
{
return m_it == boost::polymorphic_downcast<const any_bidirectional_iterator_wrapper*>(&other)->m_it;
return m_it == range_detail::polymorphic_ref_downcast<const any_bidirectional_iterator_wrapper>(other).m_it;
}
virtual reference dereference() const
@ -482,7 +492,7 @@ namespace boost
virtual bool equal(const any_single_pass_iterator_interface<Reference, Buffer>& other) const
{
return m_it == boost::polymorphic_downcast<const any_random_access_iterator_wrapper*>(&other)->m_it;
return m_it == range_detail::polymorphic_ref_downcast<const any_random_access_iterator_wrapper>(other).m_it;
}
virtual void decrement()
@ -502,7 +512,7 @@ namespace boost
virtual Difference distance_to(const any_random_access_iterator_interface<Reference, Difference, Buffer>& other) const
{
return boost::polymorphic_downcast<const any_random_access_iterator_wrapper*>(&other)->m_it - m_it;
return range_detail::polymorphic_ref_downcast<const any_random_access_iterator_wrapper>(other).m_it - m_it;
}
private: