https://issues.dlang.org/show_bug.cgi?id=24698

          Issue ID: 24698
           Summary: Appender needs to expose readonly property 'size_t
                    length' without using 'data' property
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: phobos
          Assignee: nobody@puremagic.com
          Reporter: apz28@hotmail.com

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