| // PR c++/47289 |
| // { dg-do compile { target c++11 } } |
| // { dg-prune-output "note" } |
| |
| template <template <typename... __ARGS> class _F, typename... _ARGS> |
| auto reverse (_ARGS... args) -> decltype(_F<_ARGS...>::call_function(args...)) { |
| return _F<_ARGS...>::call_function(args...); |
| } |
| |
| template <typename _T> |
| _T sum(_T x) { return x; } |
| |
| template <typename _T, typename... _ARGS> |
| _T sum(_T x, _ARGS... args) { return x + sum(args...); } |
| |
| template <typename _T, typename... _ARGS> |
| struct call_sum { |
| static _T call_function(_T x1, _ARGS... args) { return sum(x1, args...); } |
| }; |
| |
| int main() { |
| // This shouldn't be an error; this is bug 35722. |
| reverse<call_sum>(1,2); // { dg-bogus "no match" } |
| // { dg-bogus "sorry, unimplemented" "candidate explanation" { target *-*-* } 6 } |
| } |
