The class template PolyLinePolygonWithHolesData's member type iteratorHoles is not a legal LegacyIterator since there is no specialization of std::iterator_traits for it.
This leads to the surprising behavior that code won't compile when the iterator is used with the standard library's algorithms, say std::transform, and the concept is correctly enforced (for example by compiling with __GLIBCXX_DEBUG).
(There might be other iterators for which this is true as well?)
The class template
PolyLinePolygonWithHolesData's member typeiteratorHolesis not a legalLegacyIteratorsince there is no specialization ofstd::iterator_traitsfor it.This leads to the surprising behavior that code won't compile when the iterator is used with the standard library's algorithms, say
std::transform, and the concept is correctly enforced (for example by compiling with__GLIBCXX_DEBUG).(There might be other iterators for which this is true as well?)