[Bug c++/87607] Cannot use fold expression in static_assert

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87607

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
You've got the syntax for a fold-expression wrong. The parentheses around the
expression are required:

template<class T, class... Args>
void f(Args ...args) {
    static_assert((is_same<T, Args>::value && ...));
}

This compiles fine.