------- Comment #3 from sam at gcc dot gnu dot org 2007-11-30 16:57 ------- As I said, there were a real problem, but it has already been fixed in GCC 4.3.0 which has not yet been released.
For what you are trying to achieve, you should rather declare X as X : T_Type; for X'Address use System.Storage_Elements.To_Address (50); but this question should have been brought onto the comp.lang.ada newsgroup instead of here :) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34301
