Class <anonymous struct>
   size=8 align=4
   base size=8 base align=4
<anonymous struct> (0x0x7efd5333b960) 0

Class <anonymous struct>::<anonymous union>
   size=4 align=4
   base size=4 base align=4
<anonymous struct>::<anonymous union> (0x0x7efd5333ba20) 0

Class <anonymous struct>
   size=8 align=4
   base size=8 base align=4
<anonymous struct> (0x0x7efd5333b9c0) 0

Class <anonymous struct>
   size=16 align=8
   base size=16 base align=8
<anonymous struct> (0x0x7efd5333ba80) 0

Class <anonymous struct>
   size=16 align=8
   base size=16 base align=8
<anonymous struct> (0x0x7efd5333bae0) 0

Class _IO_marker
   size=24 align=8
   base size=24 base align=8
_IO_marker (0x0x7efd5333bb40) 0

Class _IO_FILE
   size=216 align=8
   base size=216 base align=8
_IO_FILE (0x0x7efd5333bba0) 0

Class <anonymous struct>
   size=32 align=8
   base size=32 base align=8
<anonymous struct> (0x0x7efd5333bc00) 0

Vtable for ImgWriter
ImgWriter::_ZTV9ImgWriter: 9u entries
0     (int (*)(...))0
8     (int (*)(...))(& _ZTI9ImgWriter)
16    0u
24    0u
32    (int (*)(...))__cxa_pure_virtual
40    (int (*)(...))__cxa_pure_virtual
48    (int (*)(...))__cxa_pure_virtual
56    (int (*)(...))__cxa_pure_virtual
64    (int (*)(...))ImgWriter::supportCMYK

Class ImgWriter
   size=8 align=8
   base size=8 base align=8
ImgWriter (0x0x7efd5333bde0) 0 nearly-empty
    vptr=((& ImgWriter::_ZTV9ImgWriter) + 16u)

