Unfortunately, it looks like even the very limited functionality of aligned vs
template (see, e.g., c++/17743) is broken and I cannot even attempt implementing
tr1::type_traits::aligned_storage: the attribute seems completely ignored,
otherwise I could at least provide specializations for Align = 1,2,4,8,16...
Needless to say, Icc seems ok :(
Testcase (but, in case please test partial specializations too!):
//////////////
struct A
{ typedef char type[4] __attribute__((aligned(4))); };
template<unsigned _Len>
struct B
{ typedef char type[_Len] __attribute__((aligned(4))); };
template<bool> struct StaticAssert;
template<> struct StaticAssert<true> {};
StaticAssert<__alignof__(A::type) == __alignof__(B<4>::type)> a1;
StaticAssert<__alignof__(B<4>::type) == 4> a2;
/////////////////
Giovanni can you please have a look?!? Thanks!
--
Summary: __attribute__((aligned)) not working in template
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: giovannibajo at libero dot it
ReportedBy: pcarlini at suse dot de
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19163
