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