Class <anonymous struct>
   size=8 align=4
   base size=8 base align=4
<anonymous struct> (0x0x7f8cf68baf00) 0

Class __locale_struct
   size=116 align=4
   base size=116 base align=4
__locale_struct (0x0x7f8cf68baf60) 0

Class <anonymous struct>::<anonymous union>
   size=4 align=4
   base size=4 base align=4
<anonymous struct>::<anonymous union> (0x0x7f8cf693b060) 0

Class <anonymous struct>
   size=8 align=4
   base size=8 base align=4
<anonymous struct> (0x0x7f8cf693b000) 0

Class <anonymous struct>
   size=12 align=4
   base size=12 base align=4
<anonymous struct> (0x0x7f8cf693b0c0) 0

Class <anonymous struct>
   size=16 align=8
   base size=16 base align=8
<anonymous struct> (0x0x7f8cf693b120) 0

Class _IO_marker
   size=12 align=4
   base size=12 base align=4
_IO_marker (0x0x7f8cf693b180) 0

Class _IO_FILE
   size=152 align=8
   base size=152 base align=8
_IO_FILE (0x0x7f8cf693b1e0) 0

Class <anonymous struct>
   size=16 align=4
   base size=16 base align=4
<anonymous struct> (0x0x7f8cf693b240) 0

Class <anonymous struct>
   size=8 align=4
   base size=8 base align=4
<anonymous struct> (0x0x7f8cf693b420) 0

Class <anonymous struct>
   size=16 align=2
   base size=16 base align=2
<anonymous struct> (0x0x7f8cf693b480) 0

Class File
   size=276 align=4
   base size=276 base align=4
File (0x0x7f8cf693b4e0) 0

Vtable for OutputStream
OutputStream::_ZTV12OutputStream: 8u entries
0     (int (*)(...))0
4     (int (*)(...))(& _ZTI12OutputStream)
8     0u
12    0u
16    (int (*)(...))__cxa_pure_virtual
20    (int (*)(...))__cxa_pure_virtual
24    (int (*)(...))__cxa_pure_virtual
28    (int (*)(...))__cxa_pure_virtual

Class OutputStream
   size=4 align=4
   base size=4 base align=4
OutputStream (0x0x7f8cf693b540) 0 nearly-empty
    vptr=((& OutputStream::_ZTV12OutputStream) + 8u)

Vtable for FileOutputStream
FileOutputStream::_ZTV16FileOutputStream: 8u entries
0     (int (*)(...))0
4     (int (*)(...))(& _ZTI16FileOutputStream)
8     (int (*)(...))FileOutputStream::~FileOutputStream
12    (int (*)(...))FileOutputStream::~FileOutputStream
16    (int (*)(...))FileOutputStream::write
20    (int (*)(...))FileOutputStream::seek
24    (int (*)(...))FileOutputStream::tell
28    (int (*)(...))FileOutputStream::close

Class FileOutputStream
   size=8 align=4
   base size=8 base align=4
FileOutputStream (0x0x7f8cf67a2340) 0
    vptr=((& FileOutputStream::_ZTV16FileOutputStream) + 8u)
  OutputStream (0x0x7f8cf693b5a0) 0 nearly-empty
      primary-for FileOutputStream (0x0x7f8cf67a2340)

Class FileWriter
   size=20 align=4
   base size=17 base align=4
FileWriter (0x0x7f8cf693b600) 0

