https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77755
Bug ID: 77755
Summary: [concepts] Abbreviatd function template pack
expansions not working
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: bruno.manga95 at gmail dot com
Target Milestone: ---
Pack expansions are not handled correctly in the context of abbreviated
function templates. For example, foo in
template <class...> struct S{};
template <class T>
concept bool Integral = std::is_integral<T>::value;
int foo (S<Integral...>)
{
return 0;
}
fails to compile with the error: expansion pattern 'auto:1' contains no
argument packs
