re PR libstdc++/23781 (Implicit conversion from NULL to list<T>::iterator)

re PR libstdc++/23781 (Implicit conversion from NULL to list<T>::iterator)

2005-09-11  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/23781
	* include/bits/stl_list.h (_List_iterator<>::
	_List_iterator(_List_node_base*), _List_const_iterator<>::
	_List_const_iterator(const _List_node_base*)): Make explicit.
	(list<>::begin(), list<>::end(), list<>::pop_back()): Adjust
	consistently.
	* include/bits/list.tcc (list<>::insert, list<>::erase): Adjust
	consistently.
	* include/bits/stl_tree.h (_Rb_tree_iterator<>::
	_Rb_tree_iterator(_Link_type), _Rb_tree_const_iterator<>::
	_Rb_tree_const_iterator(_Link_type)): Make explicit.
	(_Rb_tree<>::begin(), _Rb_tree<>::end()): Adjust consistently.
	* include/ext/slist (_Slist_iterator<>::_Slist_iterator(_Node*)):
	Make explicit.
	(slist<>::erase(iterator), slist<>::erase(iterator, iterator)):
	Adjust consistently.
	* include/tr1/hashtable (hashtable_iterator<>::
	hashtable_iterator(hash_node<>**)): Make explicit.
	* testsuite/23_containers/list/23781.cc: New.
	* testsuite/23_containers/map/23781.cc: Likewise.
	* testsuite/23_containers/multimap/23781.cc: Likewise.
	* testsuite/23_containers/multiset/23781.cc: Likewise.
	* testsuite/23_containers/set/23781.cc: Likewise.
	* testsuite/ext/slist/23781.cc: Likewise.
	* testsuite/tr1/6_containers/unordered/23781.cc: Likewise.
	* testsuite/23_containers/map/operators/1_neg.cc: Adjust dg-error
	line numbers.
	* testsuite/23_containers/set/operators/1_neg.cc: Likewise.

	* include/tr1/array (array<>::begin(), array<>::end()): Adjust
	stylistically for consistency with the other containers.

From-SVN: r104139