Fabian Cenedese <Cenedese@xxxxxxxx> writes: > If I have a virtual method > > virtual unsigned long CClass::vMethod(); > > and do in the source > > unsigned long (CClass::*pvm)() = &CClass::vMethod; > > then pvm is a structure (or pointer to it) with the elements > short __delta > short __index > union __pfn_or_delta2 > void* pfn > short __delta2 > > These names come directly out of the debug info, they nowhere appear > in the project's sources. I do see them in the elf file but I don't know if > the values are fixed or calculated at runtime. > > pvm:(0,50)=s8__delta:(0,8),0,16;__index:(0,8),16,16;__pfn_or_delta2:(0,51)=u4__pfn:(0,52)=*(14,53),0,32;__delta2:(0,8),0,16;;,32,32;; Wow, stabs debugging information. Did you mention which version of gcc you are using? I think you must be using the old C++ ABI, i.e. a version of gcc earlier than 3.4, which was released over five years ago. I don't think I ever knew how pointer-to-member-functions worked in that ABI. There is no delta2 in the current gcc ABI. Ian