{
iterator it = find_key( key, find_predicate() );
if ( it == m_List.end() || key_comparator()( key, *it ) != 0 )
- return null_ptr<value_type *>();
+ return nullptr;
// key exists
value_type& val = *it;
{
iterator it = find_key( key, pred );
if ( it == m_List.end() || pred( key, *it ) || pred( *it, key ) )
- return null_ptr<value_type *>();
+ return nullptr;
// key exists
value_type& val = *it;