c++ - Inconsistent member offset computation in MFC class -


in our vs2013 mfc project, cwinapp application class has cwordarray member.

looking @ dissassembly can tell offset of member 21eh.

this call setsize assembly code called within cwinapp:

m_arraydefind.setsize(64, 1); 00f36d0f  push        1   00f36d11  push        40h   00f36d13  mov         ecx,dword ptr [this]   00f36d16  add         ecx,21eh  <<<<<< note offset 00f36d1c  call        cwordarray::setsize (0fc25e0h)

however, in cview class, retrieve cwinapp pointer , reference same member. when @ dissassembly code in cview class, compiler has set offset @ 230h.

cmyapp *papp = (cmyapp *)afxgetapp();  int size = papp->m_arraydefind.getsize(); 00f2da42  mov         ecx,dword ptr [ebp-20h]   00f2da45  add         ecx,230h  <<<<<< note offset   00f2da4b  call        cwordarray::getsize (0fc225ch)   00f2da50  mov         dword ptr [ebp-24h],eax

we have done obvious – clean, rebuild all. have ensured both compilation units using same application header file.

the above ported vs6 application handles correctly.

we're @ loss explain above. can help?


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