{ typedef typename remove_reference<_Tp>::type* type; };
/// @brief other transformations [4.8].
-
- // Due to c++/19163 and c++/17743, for the time being we cannot use
- // the correct, neat implementation :-(
- //
- // template<std::size_t _Len, std::size_t _Align>
- // struct aligned_storage
- // { typedef char type[_Len] __attribute__((__aligned__(_Align))); }
- //
- // Temporary workaround, useful for Align up to 32:
- template<std::size_t, std::size_t>
- struct aligned_storage { };
-
- template<std::size_t _Len>
- struct aligned_storage<_Len, 1>
- {
- union type
- {
- unsigned char __data[_Len];
- char __align __attribute__((__aligned__(1)));
- };
- };
-
- template<std::size_t _Len>
- struct aligned_storage<_Len, 2>
- {
- union type
- {
- unsigned char __data[_Len];
- char __align __attribute__((__aligned__(2)));
- };
- };
-
- template<std::size_t _Len>
- struct aligned_storage<_Len, 4>
- {
- union type
- {
- unsigned char __data[_Len];
- char __align __attribute__((__aligned__(4)));
- };
- };
-
- template<std::size_t _Len>
- struct aligned_storage<_Len, 8>
- {
- union type
- {
- unsigned char __data[_Len];
- char __align __attribute__((__aligned__(8)));
- };
- };
-
- template<std::size_t _Len>
- struct aligned_storage<_Len, 16>
- {
- union type
- {
- unsigned char __data[_Len];
- char __align __attribute__((__aligned__(16)));
- };
- };
-
- template<std::size_t _Len>
- struct aligned_storage<_Len, 32>
- {
+ template<std::size_t _Len, std::size_t _Align>
+ struct aligned_storage
+ {
union type
{
unsigned char __data[_Len];
- char __align __attribute__((__aligned__(32)));
+ struct __attribute__((__aligned__((_Align)))) { } __aligner;
};
};