18 lines
649 B
C++
18 lines
649 B
C++
// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
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// The example given in the standard (this is rejected for other reasons anyway).
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template<class T> struct A;
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template<class T> using B = typename A<T>::U; // expected-error {{no type named 'U' in 'A<T>'}}
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template<class T> struct A {
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typedef B<T> U; // expected-note {{in instantiation of template type alias 'B' requested here}}
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};
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B<short> b;
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template<typename T> using U = int;
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template<typename ...T> void f(U<T> ...xs);
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void g() { f<void,void,void>(1, 2, 3); }
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// FIXME: This is illegal, but probably only because CWG1044 missed this paragraph.
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template<typename T> using U = U<T>;
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