On Thu, Jun 3, 2010 at 7:14 AM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > Christian Convey <christian.convey@xxxxxxxxx> writes: > >> Are you sure that's a bug in the legalistic sense? IIRC, C and C++ >> don't promise any particular memory layout for structs. > > They don't promise any particular memory layout, but gcc does promise > that it will not arbitrarily change the layout in new releases. If it > did, it would be impossible for code compiled by one version of gcc to > call a function defined by a different version of gcc while passing a > struct parameter. > > Ian I always thought that structure layout conventions are plarform-wide much like calling conventions. Otherwise, how can we link together code compiled by different compilers? Alexey
