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// RUN: %clang_cc1 -fsyntax-only -verify %s
template void *; // expected-error{{expected unqualified-id}}
template typedef void f0; // expected-error{{explicit instantiation of typedef}}
int v0; // expected-note{{refers here}}
template int v0; // expected-error{{does not refer}}
template<typename T>
struct X0 {
static T value;
T f0(T x) {
return x + 1; // expected-error{{invalid operands}}
}
T* f0(T*, T*) { return T(); } // expected-warning{{expression which evaluates to zero treated as a null pointer constant of type 'int *'}}
template <typename U> T f0(T, U) { return T(); } // expected-note {{candidate template ignored: could not match 'int (int, U)' against 'int (int) const'}} \
// expected-note {{candidate template ignored: could not match 'int' against 'int *'}}
};
template<typename T>
T X0<T>::value; // expected-error{{no matching constructor}}
template int X0<int>::value;
struct NotDefaultConstructible { // expected-note{{candidate constructor (the implicit copy constructor)}}
NotDefaultConstructible(int); // expected-note{{candidate constructor}}
};
template NotDefaultConstructible X0<NotDefaultConstructible>::value; // expected-note{{instantiation}}
template int X0<int>::f0(int);
template int* X0<int>::f0(int*, int*); // expected-note{{in instantiation of member function 'X0<int>::f0' requested here}}
template int X0<int>::f0(int, float);
template int X0<int>::f0(int) const; // expected-error{{does not refer}}
template int* X0<int>::f0(int*, float*); // expected-error{{does not refer}}
struct X1 { };
typedef int X1::*MemPtr;
template MemPtr X0<MemPtr>::f0(MemPtr); // expected-note{{requested here}}
struct X2 {
int f0(int); // expected-note{{refers here}}
template<typename T> T f1(T) { return T(); }
template<typename T> T* f1(T*) { return 0; }
template<typename T, typename U> void f2(T, U*) { } // expected-note{{candidate}}
template<typename T, typename U> void f2(T*, U) { } // expected-note{{candidate}}
};
template int X2::f0(int); // expected-error{{not an instantiation}}
template int *X2::f1(int *); // okay
template void X2::f2(int *, int *); // expected-error{{ambiguous}}
template <typename T>
void print_type() {} // expected-note {{candidate template ignored: could not match 'void ()' against 'void (float *)'}}
template void print_type<int>();
template void print_type<float>();
template <typename T>
void print_type(T *) {} // expected-note {{candidate template ignored: could not match 'void (int *)' against 'void (float *)'}}
template void print_type(int*);
template void print_type<int>(float*); // expected-error{{does not refer}}
void print_type(double*);
template void print_type<double>(double*);
// PR5069
template<int I> void foo0 (int (&)[I + 1]) { }
template void foo0<2> (int (&)[3]);
namespace explicit_instantiation_after_implicit_instantiation {
template <int I> struct X0 { static int x; };
template <int I> int X0<I>::x;
void test1() { (void)&X0<1>::x; }
template struct X0<1>;
}
template<typename> struct X3 { };
inline template struct X3<int>; // expected-warning{{ignoring 'inline' keyword on explicit template instantiation}}
static template struct X3<float>; // expected-warning{{ignoring 'static' keyword on explicit template instantiation}}
namespace PR7622 {
template<typename,typename=int>
struct basic_streambuf;
template<typename,typename>
struct basic_streambuf{friend bob<>()}; // expected-error{{unknown type name 'bob'}} \
// expected-error{{expected member name or ';' after declaration specifiers}}
template struct basic_streambuf<int>;
}
// Test that we do not crash.
class TC1 {
class TC2 {
template // FIXME: error here.
void foo() { }
};
};
namespace PR8020 {
template <typename T> struct X { X() {} };
template<> struct X<int> { X(); };
template X<int>::X() {} // expected-error{{function cannot be defined in an explicit instantiation}}
}
namespace PR10086 {
template void foobar(int i) {} // expected-error{{function cannot be defined in an explicit instantiation}}
int func() {
foobar(5);
}
}
namespace undefined_static_data_member {
template<typename T> struct A {
static int a; // expected-note {{here}}
template<typename U> static int b; // expected-note {{here}} expected-warning {{extension}}
};
struct B {
template<typename U> static int c; // expected-note {{here}} expected-warning {{extension}}
};
template int A<int>::a; // expected-error {{explicit instantiation of undefined static data member 'a' of class template 'undefined_static_data_member::A<int>'}}
template int A<int>::b<int>; // expected-error {{explicit instantiation of undefined variable template 'undefined_static_data_member::A<int>::b<int>'}}
template int B::c<int>; // expected-error {{explicit instantiation of undefined variable template 'undefined_static_data_member::B::c<int>'}}
template<typename T> struct C {
static int a;
template<typename U> static int b; // expected-warning {{extension}}
};
struct D {
template<typename U> static int c; // expected-warning {{extension}}
};
template<typename T> int C<T>::a;
template<typename T> template<typename U> int C<T>::b; // expected-warning {{extension}}
template<typename U> int D::c; // expected-warning {{extension}}
template int C<int>::a;
template int C<int>::b<int>;
template int D::c<int>;
}
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