https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63628
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-10-23
Summary|[c++1y] cannot use decltype |[c++1y] cannot use decltype
|on captured variable in |on captured arg-pack
|generic lambda |
Ever confirmed|0 |1
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This still fails on trunk, reduced from the original code in PR 61814
auto const pack = [](auto... t)
{
[&]
{
int a[] = { static_cast<decltype(t)>(t)... };
};
};
int main() {
pack(1);
}
ll.cc: In instantiation of ‘<lambda(auto:1 ...)>::<lambda()> [with auto:1 =
{int}]’:
ll.cc:5:49: required from ‘struct<lambda(auto:1 ...)> [with auto:1 =
{int}]::<lambda()>’
ll.cc:3:9: required from ‘<lambda(auto:1 ...)> [with auto:1 = {int}]’
ll.cc:10:15: required from here
ll.cc:5:55: error: cannot convert ‘decltype (t)’ to ‘int’ in initialization
int a[] = { static_cast<decltype(t)>(t)... };
^
ll.cc:5:55: error: storage size of ‘a’ isn’t known
