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  1. Core Server
  2. SERVER-15184

Clang 3.5 reports error: memset overwrites vtable pointer in s2

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major - P3 Major - P3
    • 2.7.7
    • 2.7.6
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    Description

      src/third_party/s2/s2regioncoverer.cc:116:10: error: destination for this 'memset' call is a pointer to class containing a dynamic class
            'S2Cell'; vtable pointer will be overwritten [-Werror,-Wdynamic-class-memaccess]
        memset(candidate, 0, size);
        ~~~~~~ ^
      src/third_party/s2/s2regioncoverer.cc:116:10: note: explicitly cast the pointer to silence this warning
        memset(candidate, 0, size);
               ^
               (void*)
      1 error generated.

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            siyuan.zhou@mongodb.com Siyuan Zhou
            tyler@10gen.com Tyler Brock
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              Updated:
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