------- Additional Comments From wolfgang dot roehrl at de dot gi-de dot com 2004-11-29 16:29 ------- Subject: Antwort: ODR and option -fmerge-templates
Hi all, I'm responding to "Additional Comments From pinskia at gcc dot gnu dot org 2004-11-29 15:39": It is clear that the compiler can't diagnose ODR violations across translation units. If I don't use the compiler option -fmerge-templates in the example which I posted the linker complains about "multiple definitions of vtable of XXX". And this is a GOOD thing. What I propose is only the following: The option -fmerge-templates should not influence the location of the VTBLs - i.e. the VTBLs should allways be located in the .rodata section as it is already the case if -fmerge-templates is not switched on. And if the VTBLs are located in the .rodata section the linker would not accept doubly defined VTBLs and the kind of ODR violation which I described would be spotted independently of the -fmerge-templates option. I hope I have explained my point now a little bit clearer. With kind regards, W. Roehrl -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18717
