diff options
Diffstat (limited to 'clang/test/SemaCXX/cxx1y-variable-templates_in_class.cpp')
-rw-r--r-- | clang/test/SemaCXX/cxx1y-variable-templates_in_class.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/cxx1y-variable-templates_in_class.cpp b/clang/test/SemaCXX/cxx1y-variable-templates_in_class.cpp new file mode 100644 index 00000000000..7f2823c5c2c --- /dev/null +++ b/clang/test/SemaCXX/cxx1y-variable-templates_in_class.cpp @@ -0,0 +1,159 @@ +// RUN: %clang_cc1 -verify -fsyntax-only %s -Wno-c++11-extensions -Wno-c++1y-extensions -DPRECXX11 +// RUN: %clang_cc1 -std=c++11 -verify -fsyntax-only -Wno-c++1y-extensions %s +// RUN: %clang_cc1 -std=c++1y -verify -fsyntax-only %s + +class A { + template<typename T> const T wrong; // expected-error {{member 'wrong' declared as a template}} + template<typename T> const T wrong_init = 5; // expected-error {{member 'wrong_init' declared as a template}} + template<typename T, typename T0> static const T right = T(100); + template<typename T> static const T right<T,int> = 5; + template<typename T> const int right<int,T>; // expected-error {{member 'right' declared as a template}} + template<typename T> const float right<float,T> = 5; // expected-error {{member 'right' declared as a template}} + template<> static const int right<int,int> = 7; // expected-error {{explicit specialization of 'right' in class scope}} + template<> static const float right<float,int>; // expected-error {{explicit specialization of 'right' in class scope}} + template static const int right<int,int>; // expected-error {{template specialization requires 'template<>'}} \ + // expected-error {{explicit specialization of 'right' in class scope}} +}; + +namespace out_of_line { + class B0 { + template<typename T, typename T0> static const T right = T(100); + template<typename T> static const T right<T,int> = T(5); + }; + template<> const int B0::right<int,int> = 7; + template const int B0::right<int,int>; + template<> const int B0::right<int,float>; + template const int B0::right<int,float>; + + class B1 { + template<typename T, typename T0> static const T right; + template<typename T> static const T right<T,int>; + }; + template<typename T, typename T0> const T B1::right = T(100); + template<typename T> const T B1::right<T,int> = T(5); + + class B2 { + template<typename T, typename T0> static const T right = T(100); // expected-note {{previous definition is here}} + template<typename T> static const T right<T,int> = T(5); // expected-note {{previous definition is here}} + }; + template<typename T, typename T0> const T B2::right = T(100); // expected-error {{redefinition of 'right'}} + template<typename T> const T B2::right<T,int> = T(5); // expected-error {{redefinition of 'right'}} + + class B3 { + template<typename T, typename T0> static const T right = T(100); + template<typename T> static const T right<T,int> = T(5); + }; + template<typename T, typename T0> const T B3::right; // expected-error {{forward declaration of variable template cannot have a nested name specifier}} + template<typename T> const T B3::right<T,int>; // expected-error {{forward declaration of variable template partial specialization cannot have a nested name specifier}} + + class B4 { + template<typename T, typename T0> static const T right; + template<typename T> static const T right<T,int>; + template<typename T, typename T0> static const T right_def = T(100); + template<typename T> static const T right_def<T,int>; // expected-note {{explicit instantiation refers here}} + }; + template<typename T, typename T0> const T B4::right; // expected-error {{forward declaration of variable template cannot have a nested name specifier}} + template<typename T> const T B4::right<T,int>; // expected-error {{forward declaration of variable template partial specialization cannot have a nested name specifier}} \ + // expected-note {{explicit instantiation refers here}} + template const int B4::right<int,int>; // expected-error {{explicit instantiation of undefined static data member template 'right' of class}} + template const int B4::right_def<int,int>; // expected-error {{explicit instantiation of undefined static data member template 'right_def' of class}} +} + +namespace non_const_init { + class A { + template<typename T> static T wrong_inst = T(10); // expected-error {{non-const static data member must be initialized out of line}} + template<typename T> static T wrong_inst_fixed; + }; + template int A::wrong_inst<int>; // expected-note {{in instantiation of static data member 'non_const_init::A::wrong_inst<int>' requested here}} + template<typename T> T A::wrong_inst_fixed = T(10); + template int A::wrong_inst_fixed<int>; + + class B { + template<typename T> static T wrong_inst; + template<typename T> static T wrong_inst<T*> = T(100); // expected-error {{non-const static data member must be initialized out of line}} + + template<typename T> static T wrong_inst_fixed; + template<typename T> static T wrong_inst_fixed<T*>; + }; + template int B::wrong_inst<int*>; // expected-note {{in instantiation of static data member 'non_const_init::B::wrong_inst<int *>' requested here}} + template<typename T> T B::wrong_inst_fixed = T(100); + template int B::wrong_inst_fixed<int>; + + class C { + template<typename T> static const T right_inst = T(10); + template<typename T> static const T right_inst<T*> = T(100); + }; + template const int C::right_inst<int>; + template const int C::right_inst<int*>; + + namespace pointers { + + struct C0 { + template<typename U> static U Data; + template<typename U> static const U Data<U*> = U(); // Okay + }; + template const int C0::Data<int*>; + + struct C1a { + template<typename U> static U Data; + template<typename U> static U* Data<U>; // Okay, with out-of-line definition + }; + template<typename T> T* C1a::Data<T> = new T(); + template int* C1a::Data<int>; + + struct C1b { + template<typename U> static U Data; + template<typename U> static const U* Data<U>; // Okay, with out-of-line definition + }; + template<typename T> const T* C1b::Data<T> = (T*)(0); + template const int* C1b::Data<int>; + + struct C2a { + template<typename U> static U Data; + template<typename U> static U* Data<U> = new U(); // expected-error {{non-const static data member must be initialized out of line}} + }; + template int* C2a::Data<int>; // expected-note {{in instantiation of static data member 'non_const_init::pointers::C2a::Data<int>' requested here}} + + struct C2b { // FIXME: ?!? Should this be an error? pointer-types are automatically non-const? + template<typename U> static U Data; + template<typename U> static const U* Data<U> = (U*)(0); // expected-error {{non-const static data member must be initialized out of line}} + }; + template const int* C2b::Data<int>; // expected-note {{in instantiation of static data member 'non_const_init::pointers::C2b::Data<int>' requested here}} + } +} + +struct matrix_constants { + // TODO: (?) +}; + +namespace in_class_template { + // FIXME: member data templates of class templates are not well supported yet. + + template<typename T> + class D0 { + template<typename U> static U Data; + template<typename U> static const U Data<U*> = U(); + }; + + template<typename T> + class D1 { + template<typename U> static U Data; + template<typename U> static U* Data<U*>; + }; + template<typename T> + template<typename U> U* D1<T>::Data<U*> = (U*)(0); + + namespace to_be_fixed { + // FIXME: The following generate runtime exceptions! + + //template<> + //template<typename U> U* D1<float>::Data<U*> = (U*)(0) + 1; + //template const int D0<float>::Data<int*>; + //template int* D1<float>::Data<int*>; + } +} + +namespace in_nested_classes { + // TODO: +} + |