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// RUN: %clang_cc1 -fsyntax-only -verify %s
template<typename T, T Divisor>
class X {
public:
static const T value = 10 / Divisor; // expected-error{{in-class initializer is not an integral constant expression}}
};
int array1[X<int, 2>::value == 5? 1 : -1];
X<int, 0> xi0; // expected-note{{in instantiation of template class 'class X<int, 0>' requested here}}
template<typename T>
class Y {
static const T value = 0; // expected-error{{'value' can only be initialized if it is a static const integral data member}}
};
Y<float> fy; // expected-note{{in instantiation of template class 'class Y<float>' requested here}}
// out-of-line static member variables
template<typename T>
struct Z {
static T value;
};
template<typename T>
T Z<T>::value; // expected-error{{no matching constructor}}
struct DefCon {};
struct NoDefCon {
NoDefCon(const NoDefCon&);
};
void test() {
DefCon &DC = Z<DefCon>::value;
NoDefCon &NDC = Z<NoDefCon>::value; // expected-note{{instantiation}}
}
// PR5609
struct X1 {
~X1(); // The errors won't be triggered without this dtor.
};
template <typename T>
struct Y1 {
static char Helper(T);
static const int value = sizeof(Helper(T()));
};
struct X2 {
virtual ~X2();
};
namespace std {
class type_info { };
}
template <typename T>
struct Y2 {
static T &Helper();
static const int value = sizeof(typeid(Helper()));
};
template <int>
struct Z1 {};
void Test() {
Z1<Y1<X1>::value> x;
int y[Y1<X1>::value];
Z1<Y2<X2>::value> x2;
int y2[Y2<X2>::value];
}
// PR5672
template <int n>
struct X3 {};
class Y3 {
public:
~Y3(); // The error isn't triggered without this dtor.
void Foo(X3<1>);
};
template <typename T>
struct SizeOf {
static const int value = sizeof(T);
};
void MyTest3() {
Y3().Foo(X3<SizeOf<char>::value>());
}
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