François Dumont
05a30af3f2
libstdc++: Implement N3644 for _GLIBCXX_DEBUG iterators
libstdc++-v3/ChangeLog:
PR libstdc++/98466
* include/bits/hashtable_policy.h (_Node_iterator_base()): Set _M_cur to nullptr.
(_Node_iterator()): Make default.
(_Node_const_iterator()): Make default.
* include/debug/macros.h (__glibcxx_check_erae_range_after): Add _M_singular
iterator checks.
* include/debug/safe_iterator.h
(_GLIBCXX_DEBUG_VERIFY_OPERANDS): Accept if both iterator are value initialized.
* include/debug/safe_local_iterator.h (_GLIBCXX_DEBUG_VERIFY_OPERANDS):
Likewise.
* include/debug/safe_iterator.tcc (_Safe_iterator<>::_M_valid_range): Add
_M_singular checks on input iterators.
* src/c++11/debug.cc (_Safe_iterator_base::_M_can_compare): Remove _M_singular
checks.
* testsuite/23_containers/deque/debug/98466.cc: New test.
* testsuite/23_containers/unordered_map/debug/98466.cc: New test.