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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -fcxx-exceptions -fexceptions -verify %s
// When it is part of a parameter-declaration-clause, the parameter
// pack is a function parameter pack.
template<typename ...Types>
void f0(Types ...args);
template<typename ...Types>
void f1(const Types &...args);
// [ Note: Otherwise, the parameter-declaration is part of a
// template-parameter-list and the parameter pack is a template
// parameter pack; see 14.1. -- end note ]
template<int ...N>
struct X0 { };
template<typename ...Types>
struct X1 {
template<Types ...Values> struct Inner;
};
// A declarator-id or abstract-declarator containing an ellipsis shall
// only be used in a parameter-declaration.
int (...f2)(int); // expected-error{{only function and template parameters can be parameter packs}}
void f3() {
int ...x; // expected-error{{only function and template parameters can be parameter packs}}
if (int ...y = 17) { } // expected-error{{only function and template parameters can be parameter packs}}
for (int ...z = 0; z < 10; ++z) { } // expected-error{{only function and template parameters can be parameter packs}}
try {
} catch (int ...e) { // expected-error{{only function and template parameters can be parameter packs}}
}
}
template<typename ...Types>
struct X2 {
Types ...members; // expected-error{{only function and template parameters can be parameter packs}} \
// expected-error{{data member type contains unexpanded parameter pack}}
};
// The type T of the declarator-id of the function parameter pack
// shall contain a template parameter pack; each template parameter
// pack in T is expanded by the function parameter pack.
template<typename T>
void f4(T ...args); // expected-error{{type 'T' of function parameter pack does not contain any unexpanded parameter packs}}
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