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c++gccvirtual-functionsvtable

How to display the VTABLE of a C++ class through GCC?

I understand that a class will have a VTABLE, if it contains at-least one virtual function. I would like to see the contents of the VTABLE. Is there a way to display it ?

Specifically, is there an option in gcc to display the VTABLE of a class?

Solution

  • If the input file is say layout.cpp, the command gcc -fdump-class-hierarchy layout.cpp will produce a file layout.cpp.class. This file will display the VTABLE along with some other useful information.