------- Comment #1 from pinskia at gcc dot gnu dot org 2008-08-10 23:28 ------- >d *ptr = reinterpret_cast<d*> (c1);
You are violating C/C++ aliasing rules as *c1 here is a c and not a d. Even though d inherits from c, this is undefined behavior still as it is not the opposite way around. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36971