[Bug c++/92104] __builtin_has_attribute in templates

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92104

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |msebor at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Testcase could be e.g.
template <typename T>
bool
has_packed ()
{
  return __builtin_has_attribute (T (), packed);
}
struct __attribute__((packed)) S { char a, b, c, d; };
bool p = has_packed<S> ();
or similar.