Hi Dan, > I think the right place for this question might have > been gcc-help (http://gcc.gnu.org/ml/gcc-help/). Thanks to Ben, I've already posted the same question to gcc-help. > > [ Why doesn't dynamic_cast work when I dlopen a > shared library? ] I've checked out http://gcc.gnu.org/faq.html#dso. But in fact, I'm writing python extention module, so I can't call dlopen() with RTLD_GLOBAL flag. My actual question is: - Why dynamic_cast across shared libraries works for VirtualTag in test1? (though I use dlopen() in test1.) - Is it correct to use this workaround (i.e. making a class polymorphic) when I can't use RTLD_GLOBAL flag? Thanks. --- Dan Kegel <dank@xxxxxxxxx> wrote: > shin1_morita@xxxxxxxxxxx wrote: > > [ Why doesn't dynamic_cast work when I dlopen a > shared library? ] > > I think the right place for this question might have > been > gcc-help (http://gcc.gnu.org/ml/gcc-help/). > Nevertheless, I think > http://gcc.gnu.org/faq.html#dso > should answer your question. > - Dan > > -- > Wine for Windows ISVs: http://kegel.com/wine/isv -------------------------------------- STOP HIV/AIDS. Yahoo! JAPAN Redribbon Campaign 2005 http://pr.mail.yahoo.co.jp/redribbon/
