Martin Sebor wrote:
>
>Travis Vitek wrote:
>>
>> Here is a testcase...
>>
>> $ cat z.cpp && g++ --version && g++ -c z.cpp
>>
>> template <int N, int A>
>> struct __rw_aligned_storage {
>> typedef struct {
>> char _C_align [N] __attribute__ ((aligned (A)));
>> } type;
>> };
>>
>> __rw_aligned_storage<10, 4>::type aligned_t;
>>
[...]
>>
>> z.cpp: In instantiation of '__rw_aligned_storage<10, 4>::type':
>> z.cpp:9: instantiated from here
>> z.cpp:5: error: requested alignment is not a constant
>>
>> If I can't access the member type 'type', then the feature
>> is useless. The nested type is the only thing that is aligned.
>> If you are sure that this will work with gcc-4.3, please show
>> me where I've gone wrong.
>
>Isn't it obvious? You're missing a set of parentheses around A ;-)
>This works for me:
>
> template <int N, int A>
> struct __rw_aligned_storage {
> typedef struct {
> char _C_align [N] __attribute__ ((aligned ((A))));
> } type;
> };
>
> __rw_aligned_storage<10, 4>::type aligned_t;
>
>>
>> Travis
>>
Darn you Martin Sebor! Well now that I have a workaround, I can do it
the easy way (on one compiler).
Travis
