146 lines
3.5 KiB
C++
146 lines
3.5 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
|
|
|
|
// Tests various places where requiring a complete type involves
|
|
// instantiation of that type.
|
|
|
|
template<typename T>
|
|
struct X {
|
|
X(T);
|
|
|
|
T f; // expected-error{{data member instantiated with function type 'float (int)'}} \
|
|
// expected-error{{data member instantiated with function type 'int (int)'}} \
|
|
// expected-error{{data member instantiated with function type 'char (char)'}} \
|
|
// expected-error{{data member instantiated with function type 'short (short)'}} \
|
|
// expected-error{{data member instantiated with function type 'float (float)'}}
|
|
};
|
|
|
|
X<int> f() { return 0; }
|
|
|
|
struct XField {
|
|
X<float(int)> xf; // expected-note{{in instantiation of template class 'X<float (int)>' requested here}}
|
|
};
|
|
|
|
void test_subscript(X<double> *ptr1, X<int(int)> *ptr2, int i) {
|
|
(void)ptr1[i];
|
|
(void)ptr2[i]; // expected-note{{in instantiation of template class 'X<int (int)>' requested here}}
|
|
}
|
|
|
|
void test_arith(X<signed char> *ptr1, X<unsigned char> *ptr2,
|
|
X<char(char)> *ptr3, X<short(short)> *ptr4) {
|
|
(void)(ptr1 + 5);
|
|
(void)(5 + ptr2);
|
|
(void)(ptr3 + 5); // expected-note{{in instantiation of template class 'X<char (char)>' requested here}}
|
|
(void)(5 + ptr4); // expected-note{{in instantiation of template class 'X<short (short)>' requested here}}
|
|
}
|
|
|
|
void test_new() {
|
|
(void)new X<float>(0);
|
|
(void)new X<float(float)>; // expected-note{{in instantiation of template class 'X<float (float)>' requested here}}
|
|
}
|
|
|
|
void test_memptr(X<long> *p1, long X<long>::*pm1,
|
|
X<long(long)> *p2,
|
|
long (X<long(long)>::*pm2)(long)) {
|
|
(void)(p1->*pm1);
|
|
}
|
|
|
|
// Reference binding to a base
|
|
template<typename T>
|
|
struct X1 { };
|
|
|
|
template<typename T>
|
|
struct X2 : public T { };
|
|
|
|
void refbind_base(X2<X1<int> > &x2) {
|
|
X1<int> &x1 = x2;
|
|
}
|
|
|
|
// Enumerate constructors for user-defined conversion.
|
|
template<typename T>
|
|
struct X3 {
|
|
X3(T);
|
|
};
|
|
|
|
void enum_constructors(X1<float> &x1) {
|
|
X3<X1<float> > x3 = x1;
|
|
}
|
|
|
|
namespace PR6376 {
|
|
template<typename T, typename U> struct W { };
|
|
|
|
template<typename T>
|
|
struct X {
|
|
template<typename U>
|
|
struct apply {
|
|
typedef W<T, U> type;
|
|
};
|
|
};
|
|
|
|
template<typename T, typename U>
|
|
struct Y : public X<T>::template apply<U>::type { };
|
|
|
|
template struct Y<int, float>;
|
|
}
|
|
|
|
namespace TemporaryObjectCopy {
|
|
// Make sure we instantiate classes when we create a temporary copy.
|
|
template<typename T>
|
|
struct X {
|
|
X(T);
|
|
};
|
|
|
|
template<typename T>
|
|
void f(T t) {
|
|
const X<int> &x = X<int>(t);
|
|
}
|
|
|
|
template void f(int);
|
|
}
|
|
|
|
namespace PR7080 {
|
|
template <class T, class U>
|
|
class X
|
|
{
|
|
typedef char true_t;
|
|
class false_t { char dummy[2]; };
|
|
static true_t dispatch(U);
|
|
static false_t dispatch(...);
|
|
static T trigger();
|
|
public:
|
|
enum { value = sizeof(dispatch(trigger())) == sizeof(true_t) };
|
|
};
|
|
|
|
template <class T>
|
|
class rv : public T
|
|
{ };
|
|
|
|
bool x = X<int, rv<int>&>::value;
|
|
}
|
|
|
|
namespace pr7199 {
|
|
template <class T> class A; // expected-note {{template is declared here}}
|
|
template <class T> class B {
|
|
class A<T>::C field; // expected-error {{implicit instantiation of undefined template 'pr7199::A<int>'}}
|
|
};
|
|
|
|
template class B<int>; // expected-note {{in instantiation}}
|
|
}
|
|
|
|
namespace PR8425 {
|
|
template <typename T>
|
|
class BaseT {};
|
|
|
|
template <typename T>
|
|
class DerivedT : public BaseT<T> {};
|
|
|
|
template <typename T>
|
|
class FromT {
|
|
public:
|
|
operator DerivedT<T>() const { return DerivedT<T>(); }
|
|
};
|
|
|
|
void test() {
|
|
FromT<int> ft;
|
|
BaseT<int> bt(ft);
|
|
}
|
|
}
|