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Diffstat (limited to 'clang/test/CXX/temp/temp.decls/temp.class.spec/p6.cpp')
-rw-r--r-- | clang/test/CXX/temp/temp.decls/temp.class.spec/p6.cpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/clang/test/CXX/temp/temp.decls/temp.class.spec/p6.cpp b/clang/test/CXX/temp/temp.decls/temp.class.spec/p6.cpp new file mode 100644 index 0000000..d0fc797 --- /dev/null +++ b/clang/test/CXX/temp/temp.decls/temp.class.spec/p6.cpp @@ -0,0 +1,76 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s + +// Test class template partial specializations of member templates. +template<typename T> +struct X0 { + template<typename U> struct Inner0 { + static const unsigned value = 0; + }; + + template<typename U> struct Inner0<U*> { + static const unsigned value = 1; + }; +}; + +template<typename T> template<typename U> +struct X0<T>::Inner0<const U*> { + static const unsigned value = 2; +}; + +int array0[X0<int>::Inner0<int>::value == 0? 1 : -1]; +int array1[X0<int>::Inner0<int*>::value == 1? 1 : -1]; +int array2[X0<int>::Inner0<const int*>::value == 2? 1 : -1]; + +// Make sure we can provide out-of-line class template partial specializations +// for member templates (and instantiate them). +template<class T> struct A { + struct C { + template<class T2> struct B; + }; +}; + +// partial specialization of A<T>::C::B<T2> +template<class T> template<class T2> struct A<T>::C::B<T2*> { }; + +A<short>::C::B<int*> absip; + +// Check for conflicts during template instantiation. +template<typename T, typename U> +struct Outer { + template<typename X, typename Y> struct Inner; + template<typename Y> struct Inner<T, Y> {}; // expected-note{{previous}} + template<typename Y> struct Inner<U, Y> {}; // expected-error{{cannot be redeclared}} +}; + +Outer<int, int> outer; // expected-note{{instantiation}} + +// Test specialization of class template partial specialization members. +template<> template<typename Z> +struct X0<float>::Inner0<Z*> { + static const unsigned value = 3; +}; + +int array3[X0<float>::Inner0<int>::value == 0? 1 : -1]; +int array4[X0<float>::Inner0<int*>::value == 3? 1 : -1]; +int array5[X0<float>::Inner0<const int*>::value == 2? 1 : -1]; + +namespace rdar8651930 { + template<typename OuterT> + struct Outer { + template<typename T, typename U> + struct Inner; + + template<typename T> + struct Inner<T, T> { + static const bool value = true; + }; + + template<typename T, typename U> + struct Inner { + static const bool value = false; + }; + }; + + int array0[Outer<int>::Inner<int, int>::value? 1 : -1]; + int array1[Outer<int>::Inner<int, float>::value? -1 : 1]; +} |