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-rw-r--r--clang/test/SemaCXX/cxx1y-variable-templates_in_class.cpp159
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:
+}
+
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