117 lines
2.2 KiB
C++
117 lines
2.2 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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template<typename T, T Divisor>
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class X {
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public:
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static const T value = 10 / Divisor; // expected-error{{in-class initializer for static data member is not a constant expression}}
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};
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int array1[X<int, 2>::value == 5? 1 : -1];
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X<int, 0> xi0; // expected-note{{in instantiation of template class 'X<int, 0>' requested here}}
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template<typename T>
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class Y {
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static const T value = 0; // expected-warning{{in-class initializer for static data member of type 'const float' is a GNU extension}}
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};
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Y<float> fy; // expected-note{{in instantiation of template class 'Y<float>' requested here}}
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// out-of-line static member variables
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template<typename T>
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struct Z {
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static T value;
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};
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template<typename T>
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T Z<T>::value; // expected-error{{no matching constructor}}
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struct DefCon {};
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struct NoDefCon {
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NoDefCon(const NoDefCon&); // expected-note{{candidate constructor}}
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};
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void test() {
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DefCon &DC = Z<DefCon>::value;
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NoDefCon &NDC = Z<NoDefCon>::value; // expected-note{{instantiation}}
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}
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// PR5609
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struct X1 {
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~X1(); // The errors won't be triggered without this dtor.
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};
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template <typename T>
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struct Y1 {
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static char Helper(T);
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static const int value = sizeof(Helper(T()));
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};
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struct X2 {
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virtual ~X2();
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};
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namespace std {
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class type_info { };
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}
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template <typename T>
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struct Y2 {
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static T &Helper();
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static const int value = sizeof(typeid(Helper()));
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};
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template <int>
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struct Z1 {};
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void Test() {
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Z1<Y1<X1>::value> x;
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int y[Y1<X1>::value];
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Z1<Y2<X2>::value> x2;
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int y2[Y2<X2>::value];
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}
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// PR5672
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template <int n>
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struct X3 {};
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class Y3 {
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public:
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~Y3(); // The error isn't triggered without this dtor.
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void Foo(X3<1>);
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};
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template <typename T>
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struct SizeOf {
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static const int value = sizeof(T);
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};
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void MyTest3() {
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Y3().Foo(X3<SizeOf<char>::value>());
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}
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namespace PR6449 {
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template<typename T>
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struct X0 {
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static const bool var = false;
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};
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template<typename T>
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const bool X0<T>::var;
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template<typename T>
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struct X1 : public X0<T> {
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static const bool var = false;
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};
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template<typename T>
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const bool X1<T>::var;
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template class X0<char>;
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template class X1<char>;
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}
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