1 // RUN: %clang_cc1 -fsyntax-only -verify -fexceptions -fcxx-exceptions %s 2 // RUN: %clang_cc1 -fsyntax-only -verify -fexceptions -fcxx-exceptions -std=c++11 %s 3 4 template void *; // expected-error{{expected unqualified-id}} 5 6 template typedef void f0; // expected-error{{explicit instantiation of typedef}} 7 8 int v0; // expected-note{{refers here}} 9 template int v0; // expected-error{{does not refer}} 10 11 template<typename T> 12 struct X0 { 13 static T value; 14 15 T f0(T x) { 16 return x + 1; // expected-error{{invalid operands}} 17 } 18 T *f0(T *, T *) { return T(); } // expected-warning 0-1 {{expression which evaluates to zero treated as a null pointer constant of type 'int *'}} expected-error 0-1 {{cannot initialize return object of type 'int *' with an rvalue of type 'int'}} 19 20 template <typename U> T f0(T, U) { return T(); } // expected-note-re {{candidate template ignored: could not match 'int (int, U){{( __attribute__\(\(thiscall\)\))?}}' against 'int (int){{( __attribute__\(\(thiscall\)\))?}} const'}} \ 21 // expected-note {{candidate template ignored: could not match 'int' against 'int *'}} 22 }; 23 24 template<typename T> 25 T X0<T>::value; // expected-error{{no matching constructor}} 26 27 template int X0<int>::value; 28 29 struct NotDefaultConstructible { // expected-note{{candidate constructor (the implicit copy constructor)}} expected-note 0-1 {{candidate constructor (the implicit move constructor)}} 30 NotDefaultConstructible(int); // expected-note{{candidate constructor}} 31 }; 32 33 template NotDefaultConstructible X0<NotDefaultConstructible>::value; // expected-note{{instantiation}} 34 35 template int X0<int>::f0(int); 36 template int* X0<int>::f0(int*, int*); // expected-note{{in instantiation of member function 'X0<int>::f0' requested here}} 37 template int X0<int>::f0(int, float); 38 39 template int X0<int>::f0(int) const; // expected-error{{does not refer}} 40 template int* X0<int>::f0(int*, float*); // expected-error{{does not refer}} 41 42 struct X1 { }; 43 typedef int X1::*MemPtr; 44 45 template MemPtr X0<MemPtr>::f0(MemPtr); // expected-note{{requested here}} 46 47 struct X2 { 48 int f0(int); // expected-note{{refers here}} 49 50 template<typename T> T f1(T) { return T(); } 51 template<typename T> T* f1(T*) { return 0; } 52 53 template<typename T, typename U> void f2(T, U*) { } // expected-note{{candidate}} 54 template<typename T, typename U> void f2(T*, U) { } // expected-note{{candidate}} 55 }; 56 57 template int X2::f0(int); // expected-error{{not an instantiation}} 58 59 template int *X2::f1(int *); // okay 60 61 template void X2::f2(int *, int *); // expected-error{{ambiguous}} 62 63 template <typename T> 64 void print_type() {} // expected-note {{candidate template ignored: could not match 'void ()' against 'void (float *)'}} 65 66 template void print_type<int>(); 67 template void print_type<float>(); 68 69 template <typename T> 70 void print_type(T *) {} // expected-note {{candidate template ignored: could not match 'void (int *)' against 'void (float *)'}} 71 72 template void print_type(int*); 73 template void print_type<int>(float*); // expected-error{{does not refer}} 74 75 void print_type(double*); 76 template void print_type<double>(double*); 77 78 // PR5069 79 template<int I> void foo0 (int (&)[I + 1]) { } 80 template void foo0<2> (int (&)[3]); 81 82 namespace explicit_instantiation_after_implicit_instantiation { 83 template <int I> struct X0 { static int x; }; 84 template <int I> int X0<I>::x; 85 void test1() { (void)&X0<1>::x; } 86 template struct X0<1>; 87 } 88 89 template<typename> struct X3 { }; 90 inline template struct X3<int>; // expected-warning{{ignoring 'inline' keyword on explicit template instantiation}} 91 static template struct X3<float>; // expected-warning{{ignoring 'static' keyword on explicit template instantiation}} 92 93 namespace PR7622 { 94 template<typename,typename=int> 95 struct basic_streambuf; 96 97 template<typename,typename> 98 struct basic_streambuf{friend bob<>()}; // expected-error{{unknown type name 'bob'}} \ 99 // expected-error{{expected member name or ';' after declaration specifiers}} 100 template struct basic_streambuf<int>; 101 } 102 103 // Test that we do not crash. 104 class TC1 { 105 class TC2 { 106 template // FIXME: error here. 107 void foo() { } 108 }; 109 }; 110 111 namespace PR8020 { 112 template <typename T> struct X { X() {} }; 113 template<> struct X<int> { X(); }; 114 template X<int>::X() {} // expected-error{{function cannot be defined in an explicit instantiation}} 115 } 116 117 namespace PR10086 { 118 template void foobar(int i) {} // expected-error{{function cannot be defined in an explicit instantiation}} 119 int func() { 120 foobar(5); 121 } 122 } 123 124 namespace undefined_static_data_member { 125 template<typename T> struct A { 126 static int a; // expected-note {{here}} 127 template<typename U> static int b; // expected-note {{here}} expected-warning {{extension}} 128 }; 129 struct B { 130 template<typename U> static int c; // expected-note {{here}} expected-warning {{extension}} 131 }; 132 133 template int A<int>::a; // expected-error {{explicit instantiation of undefined static data member 'a' of class template 'undefined_static_data_member::A<int>'}} 134 template int A<int>::b<int>; // expected-error {{explicit instantiation of undefined variable template 'undefined_static_data_member::A<int>::b<int>'}} 135 template int B::c<int>; // expected-error {{explicit instantiation of undefined variable template 'undefined_static_data_member::B::c<int>'}} 136 137 138 template<typename T> struct C { 139 static int a; 140 template<typename U> static int b; // expected-warning {{extension}} 141 }; 142 struct D { 143 template<typename U> static int c; // expected-warning {{extension}} 144 }; 145 template<typename T> int C<T>::a; 146 template<typename T> template<typename U> int C<T>::b; // expected-warning {{extension}} 147 template<typename U> int D::c; // expected-warning {{extension}} 148 149 template int C<int>::a; 150 template int C<int>::b<int>; 151 template int D::c<int>; 152 } 153 154 // expected-note@+1 3-4 {{explicit instantiation refers here}} 155 template <class T> void Foo(T i) throw(T) { throw i; } 156 // expected-error@+1 {{exception specification in explicit instantiation does not match instantiated one}} 157 template void Foo(int a) throw(char); 158 // expected-error@+1 {{exception specification in explicit instantiation does not match instantiated one}} 159 template void Foo(double a) throw(); 160 // expected-error@+1 1 {{exception specification in explicit instantiation does not match instantiated one}} 161 template void Foo(long a) throw(long, char); 162 template void Foo(float a); 163 #if __cplusplus >= 201103L 164 // expected-error@+1 0-1 {{exception specification in explicit instantiation does not match instantiated one}} 165 template void Foo(double a) noexcept; 166 #endif 167 168 #if __cplusplus >= 201103L 169 namespace PR21942 { 170 template <int> 171 struct A { 172 virtual void foo() final; 173 }; 174 175 template <> 176 void A<0>::foo() {} // expected-note{{overridden virtual function is here}} 177 178 struct B : A<0> { 179 virtual void foo() override; // expected-error{{declaration of 'foo' overrides a 'final' function}} 180 }; 181 } 182 #endif 183
