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// RUN: %clang_cc1 -std=c++17 -fms-compatibility -fsyntax-only -verify=before,expected %s
// RUN: %clang_cc1 -std=c++17 -fms-compatibility -fdelayed-template-parsing -fsyntax-only -verify=before,expected %s
// RUN: %clang_cc1 -std=c++20 -fms-compatibility -fsyntax-only -verify=after,expected %s
// RUN: %clang_cc1 -std=c++20 -fms-compatibility -fdelayed-template-parsing -fsyntax-only -verify=after,expected %s
template <class T>
class Base {
};
template <class T>
class Based {}; // Trying to trick the typo detection
template <class T>
class Derived : public Base<T> {
public:
// after-error@+1 {{member initializer 'Base' does not name a non-static data member or base class}}
Derived() : Base() {} // before-warning {{unqualified base initializer of class templates is a Microsoft extension}}
private:
int Baze; // Trying to trick the typo detection
};
template <class T> struct AggregateBase {
T i;
};
template <class T>
struct AggregateDerived : public AggregateBase<T> {
int i;
// after-error@+1 {{member initializer 'AggregateBase' does not name a non-static data member or base class}}
AggregateDerived(T j) : AggregateBase{4}, i{j} {} // before-warning {{unqualified base initializer of class templates is a Microsoft extension}}
int f() {
return i + AggregateBase::i; // expected-warning {{use of undeclared identifier 'AggregateBase'; unqualified lookup into dependent bases of class template 'AggregateDerived' is a Microsoft extension}}
}
};
template <class T, typename U> struct MultiTypesBase {
};
template <class T, class U>
struct MultiTypesDerived : public MultiTypesBase<T, U> {
// after-error@+1 {{member initializer 'MultiTypesBase' does not name a non-static data member or base class}}
MultiTypesDerived() : MultiTypesBase{} {} // before-warning {{unqualified base initializer of class templates is a Microsoft extension}}
};
template <int I> struct IntegerBase {
};
template <int I>
struct IntegerDerived : public IntegerBase<I> {
// after-error@+1 {{member initializer 'IntegerBase' does not name a non-static data member or base class}}
IntegerDerived() : IntegerBase{} {} // before-warning {{unqualified base initializer of class templates is a Microsoft extension}}
};
template <class T> struct ConformingBase {
T i;
};
template <class T>
struct ConformingDerived : public ConformingBase<T> {
int i;
ConformingDerived(T j) : ConformingBase<T>{4}, i{j} {}
int f() {
return i + ConformingBase<T>::i;
}
};
int main() {
int I;
Derived<int> t;
AggregateDerived<int> AD{2};
AD.AggregateBase::i = 3;
I = AD.f();
MultiTypesDerived<int, double> MTD;
IntegerDerived<4> ID;
ConformingDerived<int> CD{2};
I = CD.f();
return I;
}
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