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32 lines
1.1 KiB
32 lines
1.1 KiB
4 months ago
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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
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template<typename T> struct identity;
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template<typename ...Types> struct tuple;
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template<typename T, typename U> struct is_same {
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static const bool value = false;
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};
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template<typename T> struct is_same<T, T> {
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static const bool value = true;
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};
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// There is a syntactic ambiguity when an ellipsis occurs at the end
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// of a parameter-declaration-clause without a preceding comma. In
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// this case, the ellipsis is parsed as part of the
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// abstract-declarator if the type of the parameter names a template
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// parameter pack that has not been expanded; otherwise, it is parsed
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// as part of the parameter-declaration-clause.
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template<typename T, typename ...Types>
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struct X0 {
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typedef identity<T(Types...)> function_pack_1;
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typedef identity<T(Types......)> variadic_function_pack_1; // expected-warning {{varargs}} expected-note {{pack}} expected-note {{insert ','}}
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typedef identity<T(T...)> variadic_1;
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typedef tuple<T(Types, ...)...> template_arg_expansion_1;
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};
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// FIXME: Once function parameter packs are implemented, we can test all of the disambiguation
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