| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s |
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| 3 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
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| 4 | // RUN: cp %s %t |
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| 5 | // RUN: not %clang_cc1 -x c++ -fixit %t -DFIXING |
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| 6 | // RUN: %clang_cc1 -x c++ %t -DFIXING |
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| 7 | |
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| 8 | template<typename T> void f(T) { } |
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| 9 | #if __cplusplus >= 201103L |
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| 10 | // expected-note@-2 {{explicit instantiation refers here}} |
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| 11 | #endif |
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| 12 | |
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| 13 | template<typename T> void g(T) { } |
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| 14 | #if __cplusplus >= 201103L |
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| 15 | // expected-note@-2 {{explicit instantiation refers here}} |
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| 16 | #endif |
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| 17 | |
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| 18 | template<typename T> struct x { }; |
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| 19 | #if __cplusplus >= 201103L |
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| 20 | // expected-note@-2 {{explicit instantiation refers here}} |
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| 21 | #endif |
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| 22 | |
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| 23 | template<typename T> struct y { }; // expected-note {{declared here}} |
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| 24 | |
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| 25 | namespace good { // Only good in C++98/03 |
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| 26 | #ifndef FIXING |
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| 27 | template void f<int>(int); |
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| 28 | #if __cplusplus >= 201103L |
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| 29 | // expected-error@-2 {{explicit instantiation of 'f' must occur at global scope}} |
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| 30 | #endif |
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| 31 | |
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| 32 | template void g(int); |
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| 33 | #if __cplusplus >= 201103L |
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| 34 | // expected-error@-2 {{explicit instantiation of 'g' must occur at global scope}} |
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| 35 | #endif |
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| 36 | |
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| 37 | template struct x<int>; |
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| 38 | #if __cplusplus >= 201103L |
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| 39 | // expected-error@-2 {{explicit instantiation of 'x' must occur at global scope}} |
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| 40 | #endif |
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| 41 | #endif |
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| 42 | } |
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| 43 | |
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| 44 | namespace unsupported { |
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| 45 | #ifndef FIXING |
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| 46 | template struct y; // expected-error {{template 'y' cannot be referenced with a struct specifier}} |
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| 47 | #endif |
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| 48 | } |
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| 49 | |
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| 50 | template<typename T> void f0(T) { } |
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| 51 | template<typename T> void g0(T) { } |
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| 52 | template<typename T> struct x0 { }; // expected-note {{explicitly specialized declaration is here}} |
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| 53 | template<typename T> struct y0 { }; |
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| 54 | |
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| 55 | // Should recover as if definition |
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| 56 | namespace noargs_body { |
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| 57 | #ifndef FIXING |
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| 58 | template void g0(int) { } // expected-error {{function cannot be defined in an explicit instantiation; if this declaration is meant to be a function definition, remove the 'template' keyword}} |
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| 59 | #endif |
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| 60 | template struct y0 { }; // expected-error {{class cannot be defined in an explicit instantiation; if this declaration is meant to be a class definition, remove the 'template' keyword}} |
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| 61 | } |
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| 62 | |
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| 63 | // Explicit specializations expected in global scope |
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| 64 | namespace exp_spec { |
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| 65 | #ifndef FIXING |
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| 66 | template<> void f0<int>(int) { } // expected-error {{no function template matches function template specialization 'f0'}} |
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| 67 | template<> struct x0<int> { }; // expected-error {{class template specialization of 'x0' must occur at global scope}} |
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| 68 | #endif |
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| 69 | } |
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| 70 | |
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| 71 | template<typename T> void f1(T) { } |
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| 72 | template<typename T> struct x1 { }; // expected-note {{explicitly specialized declaration is here}} |
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| 73 | |
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| 74 | // Should recover as if specializations, |
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| 75 | // thus also complain about not being in global scope. |
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| 76 | namespace args_bad { |
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| 77 | #ifndef FIXING |
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| 78 | template void f1<int>(int) { } // expected-error {{explicit template instantiation cannot have a definition; if this definition is meant to be an explicit specialization, add '<>' after the 'template' keyword}} \ |
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| 79 | expected-error {{no function template matches function template specialization 'f1'}} |
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| 80 | template struct x1<int> { }; // expected-error {{explicit template instantiation cannot have a definition; if this definition is meant to be an explicit specialization, add '<>' after the 'template' keyword}} \ |
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| 81 | expected-error {{class template specialization of 'x1' must occur at global scope}} |
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| 82 | #endif |
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| 83 | } |
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| 84 | |
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| 85 | template<typename T> void f2(T) { } |
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| 86 | template<typename T> struct x2 { }; |
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| 87 | |
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| 88 | // Should recover as if specializations |
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| 89 | template void f2<int>(int) { } // expected-error {{explicit template instantiation cannot have a definition; if this definition is meant to be an explicit specialization, add '<>' after the 'template' keyword}} |
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| 90 | template struct x2<int> { }; // expected-error {{explicit template instantiation cannot have a definition; if this definition is meant to be an explicit specialization, add '<>' after the 'template' keyword}} |
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| 91 | |
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