p2.cpp revision 35178dc09d97bb2e0612813def09833866e3ad82 
1// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
2
3template<class ... Types> void f(Types ... args);
4
5void test() {
6  f();
7  f(1);
8  f(2, 1.0);
9}
10
11// Test simple recursive variadic function template
12template<typename Head, typename ...Tail>
13void recurse_until_fail(const Head &, const Tail &...tail) { // expected-note{{candidate function template not viable: requires at least 1 argument, but 0 were provided}}
14  recurse_until_fail(tail...); // expected-error{{no matching function for call to 'recurse_until_fail'}} \
15  // expected-note{{in instantiation of function template specialization 'recurse_until_fail<char [7]>' requested here}} \
16  // expected-note{{in instantiation of function template specialization 'recurse_until_fail<double, char [7]>' requested here}}
17}
18
19void test_recurse_until_fail() {
20  recurse_until_fail(1, 3.14159, "string");   // expected-note{{in instantiation of function template specialization 'recurse_until_fail<int, double, char [7]>' requested here}}
21
22}
23