PR libstdc++/60587
* include/debug/functions.h (_Is_contiguous_sequence): Define.
(__foreign_iterator): Accept additional iterator. Do not dispatch on
iterator category.
(__foreign_iterator_aux2): Likewise. Add overload for iterators
from different types of debug container. Use _Is_contiguous_sequence
instead of is_lvalue_reference.
(__foreign_iterator_aux3): Accept additional iterator. Avoid
dereferencing past-the-end iterator.
(__foreign_iterator_aux4): Use const value_type* instead of
potentially user-defined const_pointer type.
* include/debug/macros.h (__glibcxx_check_insert_range): Fix comment
and pass end iterator to __gnu_debug::__foreign_iterator.
(__glibcxx_check_insert_range_after): Likewise.
(__glibcxx_check_max_load_factor): Fix comment.
* include/debug/vector (_Is_contiguous_sequence): Define partial
specializations.
* testsuite/23_containers/vector/debug/57779_neg.cc: Remove
-std=gnu++11 option and unused header.
* testsuite/23_containers/vector/debug/60587.cc: New.
* testsuite/23_containers/vector/debug/60587_neg.cc: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208755 138bc75d-0d04-0410-961f-82ee72b054a4