Get rid of a redundant field in the accessor classes. Also get rid of some operations that were previously necessary in each operator++ call, at the expense of some more work when calling accessor::row().
Get rid of a redundant field in the accessor classes. Also get rid of some
operations that were previously necessary in each operator++ call, at the
expense of some more work when calling accessor::row().


git-svn-id: 31d9d2f6432a47c86a3640814024c107794ea77c@9406 0785d39b-7218-0410-832d-ea1e28bc413d

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