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| // RUN: %clang_cc1 -triple x86_64-windows-msvc -fexceptions -fcxx-exceptions -fms-extensions -verify %s -std=c++11
// The MS ABI has a few ways to generate constructor closures, which require
// instantiating and checking the semantics of default arguments. Make sure we
// do that right.
template <typename T>
struct DependentDefaultCtorArg {
// expected-error@+1 {{type 'int' cannot be used prior to '::' because it has no members}}
DependentDefaultCtorArg(int n = T::error);
};
struct
__declspec(dllexport) // expected-note {{due to 'ExportDefaultCtorClosure' being dllexported}}
ExportDefaultCtorClosure // expected-note {{in instantiation of default function argument expression for 'DependentDefaultCtorArg<int>' required here}} expected-note {{implicit default constructor for 'ExportDefaultCtorClosure' first required here}}
: DependentDefaultCtorArg<int>
{};
template <typename T>
struct DependentDefaultCopyArg {
DependentDefaultCopyArg() {}
// expected-error@+1 {{type 'int' cannot be used prior to '::' because it has no members}}
DependentDefaultCopyArg(const DependentDefaultCopyArg &o, int n = T::member) {}
};
struct HasMember {
enum { member = 0 };
};
void UseDependentArg() { throw DependentDefaultCopyArg<HasMember>(); }
void ErrorInDependentArg() {
throw DependentDefaultCopyArg<int>(); // expected-note {{required here}}
}
struct HasCleanup {
~HasCleanup();
};
struct Default {
Default(const Default &o, int d = (HasCleanup(), 42));
};
void f(const Default &d) {
throw d;
}
|