The reason for this is that the default implementation does not
allocate memory dynamically and if such an inheritance relation existed,
a user would have to be very careful about installing a memory
handler on their own PanicHandler before handing it to the
XMLPlatformUtils::Initialize() method, since otherwise
the (uninitialized) XMLPlatformUtils::fgMemoryManager would be used
upon construction of their PanicHandler implementation.


git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@175028 13f79535-47bb-0310-9956-ffa450edef68