25 lines · cpp
1// RUN: %clang_cc1 -verify %s2 3namespace deduce_pack_non_pack {4 template <typename...> class A;5 template <typename> struct C {};6 template <typename T> void g(C<A<T>>); // expected-note {{candidate template ignored: deduced type 'C<A<[...], (no argument)>>' of 1st parameter does not match adjusted type 'C<A<[...], int>>' of argument [with T = bool]}}7 void h(C<A<bool, int>> &x) { g(x); } // expected-error {{no matching function}}8}9 10namespace pr39231 {11 template<typename T, T ...V> struct integer_sequence {};12 13 template <typename T, T... A, T... B>14 int operator^(integer_sequence<T, A...> a, // expected-note {{deduced conflicting values for parameter 'A' (<1, 2, 3> vs. <4, 5, 6>)}}15 integer_sequence<T, A...> b);16 17 int v = integer_sequence<int, 1, 2, 3>{} ^ integer_sequence<int, 4, 5, 6>{}; // expected-error {{invalid operands}}18 19 template <typename T, T... A, T... B>20 integer_sequence<T, A + B...> operator+(integer_sequence<T, A...> a,21 integer_sequence<T, B...> b);22 integer_sequence<int, 5, 7, 9> w =23 integer_sequence<int, 1, 2, 3>{} + integer_sequence<int, 4, 5, 6>{};24}25