From: Steven Watanabe (steven_at_[hidden])
Date: 2006-08-16 11:44:19
Insert does not work correctly for maps that have had elements erased.
typedef map2<pair<int, int>, pair<short, double> > my_map;
typedef erase_key<my_map, int>::type map_with_int_erased;
typedef insert<map_with_int_erased, pair<int, char> >::type final_map;
final_map is m_item<*2*, int, char, m_mask<int, my_map> >
This overwrites pair<short, double>. It ought to be
m_item<*3*, int, char, m_mask<int, my_map> >
Also, when insert is passed a key that is already present the old value
is still present in addition to the new value.
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