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// RUN: %clang_cc1 -fsyntax-only -verify %s
template<typename T>
struct X0 {
template<typename U> T f0(U);
template<typename U> U& f1(T*, U); // expected-error{{pointer to a reference}} \
// expected-note{{candidate}}
};
X0<int> x0i;
X0<void> x0v;
X0<int&> x0ir; // expected-note{{instantiation}}
void test_X0(int *ip, double *dp) {
X0<int> xi;
int i1 = xi.f0(ip);
double *&dpr = xi.f1(ip, dp);
xi.f1(dp, dp); // expected-error{{no matching}}
X0<void> xv;
double *&dpr2 = xv.f1(ip, dp);
}
template<typename T>
struct X1 {
template<typename U>
struct Inner0 {
U x;
T y; // expected-error{{void}}
};
template<typename U>
struct Inner1 {
U x; // expected-error{{void}}
T y;
};
template<typename U>
struct Inner2 {
struct SuperInner {
U z; // expected-error{{void}}
};
};
template<typename U>
struct Inner3 {
void f0(T t, U u) {
(void)(t + u); // expected-error{{invalid operands}}
}
template<typename V>
V f1(T t, U u, V) {
return t + u; // expected-error{{cannot initialize return object}}
}
};
template<typename U>
struct Inner4;
};
template<typename T>
template<typename U>
struct X1<T>::Inner4 {
template<typename V>
V f2(T t, U u, V);
static U value;
};
template<typename T>
template<typename U>
U X1<T>::Inner4<U>::value; // expected-error{{reference variable}}
template<typename T>
template<typename U>
template<typename V>
V X1<T>::Inner4<U>::f2(T t, U u, V) {
return t + u; // expected-error{{cannot initialize return object}}
}
void test_X1(int *ip, int i, double *dp) {
X1<void>::Inner0<int> *xvip; // okay
X1<void>::Inner0<int> xvi; // expected-note{{instantiation}}
X1<int>::Inner1<void> *xivp; // okay
X1<int>::Inner1<void> xiv; // expected-note{{instantiation}}
X1<int>::Inner2<void>::SuperInner *xisivp; // okay
X1<int>::Inner2<void>::SuperInner xisiv; // expected-note{{instantiation}}
X1<int*>::Inner3<int> id3;
id3.f0(ip, i);
id3.f0(dp, i); // expected-error{{cannot initialize a parameter of type 'int *' with an lvalue of type 'double *'}}
id3.f1(ip, i, ip);
id3.f1(ip, i, dp); // expected-note{{instantiation}}
X1<int*>::Inner3<double*> id3b;
id3b.f0(ip, dp); // expected-note{{instantiation}}
X1<int*>::Inner4<int> id4;
id4.f2(ip, i, dp); // expected-note{{instantiation}}
X1<int*>::Inner4<int>::value = 17;
i = X1<int*>::Inner4<int&>::value; // expected-note{{instantiation}}
}
template<typename T>
struct X2 {
template<T *Ptr> // expected-error{{pointer to a reference}}
struct Inner;
template<T Value> // expected-error{{cannot have type 'float'}}
struct Inner2;
};
X2<int&> x2a; // expected-note{{instantiation}}
X2<float> x2b; // expected-note{{instantiation}}
namespace N0 {
template<typename T>
struct X0 { };
struct X1 {
template<typename T> void f(X0<T>& vals) { g(vals); }
template<typename T> void g(X0<T>& vals) { }
};
void test(X1 x1, X0<int> x0i, X0<long> x0l) {
x1.f(x0i);
x1.f(x0l);
}
}
namespace PR6239 {
template <typename T>
struct X0 {
class type {
typedef T E;
template <E e> // subsitute T for E and bug goes away
struct sfinae { };
template <class U>
typename sfinae<&U::operator=>::type test(int);
};
};
template <typename T>
struct X1 {
typedef T E;
template <E e> // subsitute T for E and bug goes away
struct sfinae { };
template <class U>
typename sfinae<&U::operator=>::type test(int);
};
}
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