Hi, testcase committed, closed as fixed in 4.8.0.
Thanks, Paolo. //////////////////////
2012-10-11 Paolo Carlini <paolo.carl...@oracle.com> PR c++/51878 * g++.dg/cpp0x/decltype45.C: New.
Index: g++.dg/cpp0x/decltype45.C =================================================================== --- g++.dg/cpp0x/decltype45.C (revision 0) +++ g++.dg/cpp0x/decltype45.C (working copy) @@ -0,0 +1,40 @@ +// PR c++/51878 +// { dg-do compile { target c++11 } } + +template<class F, class... T> +auto indirect_call(F f, T... t) -> decltype(f(t...)) +{ + return f(t...); +} + +template<class F, class T> +struct VariadicBind +{ + F f; + T t; + + template<class... A> + auto operator()(A... a) -> decltype(indirect_call(f, t, a...)) + { + return indirect_call(f, t, a...); + } +}; + +template<class F> +void apply(F f) +{ + f(); +} + +template<class F, class V1, class... V> +void apply(F f, V1 v1, V... v) +{ + apply(VariadicBind<F, int>{f, v1}, v...); +} + +void func(int, int) { } + +int main() +{ + apply(func, 0, 0); +}