1 // RUN: %clang_cc1 --std=c++1y -fsyntax-only -verify %s 2 // RUN: cp %s %t 3 // RUN: not %clang_cc1 --std=c++1y -x c++ -fixit %t -DFIXING 4 // RUN: %clang_cc1 --std=c++1y -x c++ %t -DFIXING 5 6 template<typename T> 7 T pi = T(3.1415926535897932385); // expected-note {{template is declared here}} 8 9 template int pi<int>; 10 11 #ifndef FIXING 12 template float pi; // expected-error {{too few template arguments for template 'pi'}} 13 template double pi_var0; // expected-error {{explicit instantiation of 'pi_var0' does not refer to a function template, variable template, member function, member class, or static data member}} 14 #endif 15 16 // Should recover as if definition 17 template double pi_var = 5; // expected-error {{variable cannot be defined in an explicit instantiation; if this declaration is meant to be a variable definition, remove the 'template' keyword}} 18 #ifndef FIXING 19 template<typename T> 20 T pi0 = T(3.1415926535897932385); // expected-note {{previous definition is here}} 21 22 template int pi0 = 10; // expected-error {{variable cannot be defined in an explicit instantiation; if this declaration is meant to be a variable definition, remove the 'template' keyword}} \ 23 expected-error{{redefinition of 'pi0' with a different type: 'int' vs 'T'}} 24 #endif 25 26 template<typename T> 27 T pi1 = T(3.1415926535897932385); 28 29 // Should recover as if specialization 30 template float pi1<float> = 1.0; // expected-error {{explicit template instantiation cannot have a definition; if this definition is meant to be an explicit specialization, add '<>' after the 'template' keyword}} 31 #ifndef FIXING 32 namespace expected_global { 33 template<> double pi1<double> = 1.5; // expected-error {{no variable template matches specialization}} 34 template int pi1<int> = 10; // expected-error {{explicit template instantiation cannot have a definition; if this definition is meant to be an explicit specialization, add '<>' after the 'template' keyword}} \ 35 expected-error {{no variable template matches specialization}} 36 } 37 #endif 38
