While fixing issue 67487 on CWS sb59, I discovered the following potential
issues in svx/source/dialog/charmap.cxx:1.36:

1  Inconsistent mix of USHORT (GetSelectedIndex()), sal_Int32 (nSelectedIndex),
int (FirstInView(), LastInView()).  This has minimally been addressed on CWS
sb59 to make the code warning-free on wntmsci10.

2  The elements of m_aItems seem to be leaked.

3  The static data of getSelectedChar() could be a bad idea when there are
multiple instances of SvxShowCharSet simultaneously.

4  Should GetSelectedCharacter() return sal_Unicode (single UTF-16 code unit) or
some >=21bit number (sal_[u]Int32) to represent Unicode scalar values?

5  Since the key is part of the value, ItemsMap could be an ItemsSet.