On 16/04/14 17:06 +0200, Rüdiger Sonderfeld wrote:
C++11: [meta.trans.other]
* libstdc++-v3/testsuite/20_util/aligned_union/1.cc: New file.
* libstdc++-v3/include/std/type_traits (__strictest_alignment): New
helper struct.
(aligned_union): New struct (C++11).
(aligned_union_t): New type alias (C++14).
Thanks! I was hoping to implement it the straightforward way, but was
thwarted by http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59012
+ template <typename... _Types>
+ struct __strictest_alignment
+ {
+ static const size_t _M_alignment = 0;
+ static const size_t _M_size = 0;
The naming convention is to use _S_xxx for static members
+ template <size_t Len, class... Types>
+ using aligned_union_t = typename aligned_union<Len,Types...>::type;
It should be s/class/typename/ here.
Is <initializer_list> needed for the testcase?
The testcase can use { dg-do compile } to turn it into a compile-only
test, and then doesn't need a main() function.
Otherwise I think this looks good, thanks.
