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-rw-r--r--test/CXX/special/class.copy/p12-0x.cpp216
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diff --git a/test/CXX/special/class.copy/p12-0x.cpp b/test/CXX/special/class.copy/p12-0x.cpp
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+++ b/test/CXX/special/class.copy/p12-0x.cpp
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+// RUN: %clang_cc1 -std=c++11 -verify %s
+
+// expected-no-diagnostics
+
+template<typename T, bool B> struct trivially_copyable_check {
+ static_assert(B == __has_trivial_copy(T), "");
+ static_assert(B == __is_trivially_constructible(T, T), "");
+ static_assert(B == __is_trivially_constructible(T, const T &), "");
+ static_assert(B == __is_trivially_constructible(T, T &&), "");
+ typedef void type;
+};
+template<typename T> using trivially_copyable =
+ typename trivially_copyable_check<T, true>::type;
+template<typename T> using not_trivially_copyable =
+ typename trivially_copyable_check<T, false>::type;
+
+struct Trivial {};
+using _ = trivially_copyable<Trivial>;
+
+// A copy/move constructor for class X is trivial if it is not user-provided,
+struct UserProvided {
+ UserProvided(const UserProvided &);
+};
+using _ = not_trivially_copyable<UserProvided>;
+
+// its declared parameter type is the same as if it had been implicitly
+// declared,
+struct NonConstCopy {
+ NonConstCopy(NonConstCopy &) = default;
+};
+using _ = not_trivially_copyable<NonConstCopy>;
+
+// class X has no virtual functions
+struct VFn {
+ virtual void f();
+};
+using _ = not_trivially_copyable<VFn>;
+
+// and no virtual base classes
+struct VBase : virtual Trivial {};
+using _ = not_trivially_copyable<VBase>;
+
+// and the constructor selected to copy/move each [direct subobject] is trivial
+struct TemplateCtor {
+ template<typename T> TemplateCtor(T &);
+};
+using _ = trivially_copyable<TemplateCtor>;
+struct TemplateCtorMember {
+ TemplateCtor tc;
+};
+using _ = trivially_copyable<TemplateCtorMember>;
+
+// We can select a non-trivial copy ctor even if there is a trivial one.
+struct MutableTemplateCtorMember {
+ mutable TemplateCtor mtc;
+};
+static_assert(!__is_trivially_constructible(MutableTemplateCtorMember, const MutableTemplateCtorMember &), "");
+static_assert(__is_trivially_constructible(MutableTemplateCtorMember, MutableTemplateCtorMember &&), "");
+struct MutableTemplateCtorMember2 {
+ MutableTemplateCtorMember2(const MutableTemplateCtorMember2 &) = default;
+ MutableTemplateCtorMember2(MutableTemplateCtorMember2 &&) = default;
+ mutable TemplateCtor mtc;
+};
+static_assert(!__is_trivially_constructible(MutableTemplateCtorMember2, const MutableTemplateCtorMember2 &), "");
+static_assert(__is_trivially_constructible(MutableTemplateCtorMember2, MutableTemplateCtorMember2 &&), "");
+
+// Both trivial and non-trivial special members.
+struct TNT {
+ TNT(const TNT &) = default; // trivial
+ TNT(TNT &); // non-trivial
+
+ TNT(TNT &&) = default; // trivial
+ TNT(const TNT &&); // non-trivial
+};
+
+static_assert(!__has_trivial_copy(TNT), "lie deliberately for gcc compatibility");
+static_assert(__is_trivially_constructible(TNT, TNT), "");
+static_assert(!__is_trivially_constructible(TNT, TNT &), "");
+static_assert(__is_trivially_constructible(TNT, const TNT &), "");
+static_assert(!__is_trivially_constructible(TNT, volatile TNT &), "");
+static_assert(__is_trivially_constructible(TNT, TNT &&), "");
+static_assert(!__is_trivially_constructible(TNT, const TNT &&), "");
+static_assert(!__is_trivially_constructible(TNT, volatile TNT &&), "");
+
+// This has only trivial special members.
+struct DerivedFromTNT : TNT {};
+
+static_assert(__has_trivial_copy(DerivedFromTNT), "");
+static_assert(__is_trivially_constructible(DerivedFromTNT, DerivedFromTNT), "");
+static_assert(__is_trivially_constructible(DerivedFromTNT, DerivedFromTNT &), "");
+static_assert(__is_trivially_constructible(DerivedFromTNT, const DerivedFromTNT &), "");
+static_assert(!__is_trivially_constructible(DerivedFromTNT, volatile DerivedFromTNT &), "");
+static_assert(__is_trivially_constructible(DerivedFromTNT, DerivedFromTNT &&), "");
+static_assert(__is_trivially_constructible(DerivedFromTNT, const DerivedFromTNT &&), "");
+static_assert(!__is_trivially_constructible(DerivedFromTNT, volatile DerivedFromTNT &&), "");
+
+// This has only trivial special members.
+struct TNTMember {
+ TNT tnt;
+};
+
+static_assert(__has_trivial_copy(TNTMember), "");
+static_assert(__is_trivially_constructible(TNTMember, TNTMember), "");
+static_assert(__is_trivially_constructible(TNTMember, TNTMember &), "");
+static_assert(__is_trivially_constructible(TNTMember, const TNTMember &), "");
+static_assert(!__is_trivially_constructible(TNTMember, volatile TNTMember &), "");
+static_assert(__is_trivially_constructible(TNTMember, TNTMember &&), "");
+static_assert(__is_trivially_constructible(TNTMember, const TNTMember &&), "");
+static_assert(!__is_trivially_constructible(TNTMember, volatile TNTMember &&), "");
+
+struct NCCTNT : NonConstCopy, TNT {};
+
+static_assert(!__has_trivial_copy(NCCTNT), "");
+static_assert(!__is_trivially_constructible(NCCTNT, NCCTNT), "");
+static_assert(!__is_trivially_constructible(NCCTNT, NCCTNT &), "");
+static_assert(!__is_trivially_constructible(NCCTNT, const NCCTNT &), "");
+static_assert(!__is_trivially_constructible(NCCTNT, volatile NCCTNT &), "");
+static_assert(!__is_trivially_constructible(NCCTNT, NCCTNT &&), "");
+static_assert(!__is_trivially_constructible(NCCTNT, const NCCTNT &&), "");
+static_assert(!__is_trivially_constructible(NCCTNT, volatile NCCTNT &&), "");
+
+struct TemplateCtorNoMove {
+ TemplateCtorNoMove(const TemplateCtorNoMove &) = default;
+ template<typename T> TemplateCtorNoMove(T &&);
+};
+static_assert(__is_trivially_constructible(TemplateCtorNoMove, const TemplateCtorNoMove &), "");
+static_assert(!__is_trivially_constructible(TemplateCtorNoMove, TemplateCtorNoMove &&), "");
+
+struct UseTemplateCtorNoMove {
+ TemplateCtorNoMove tcnm;
+};
+static_assert(__is_trivially_constructible(UseTemplateCtorNoMove, const UseTemplateCtorNoMove &), "");
+static_assert(!__is_trivially_constructible(UseTemplateCtorNoMove, UseTemplateCtorNoMove &&), "");
+
+struct TemplateCtorNoMoveSFINAE {
+ TemplateCtorNoMoveSFINAE(const TemplateCtorNoMoveSFINAE &) = default;
+ template<typename T, typename U = typename T::error> TemplateCtorNoMoveSFINAE(T &&);
+};
+static_assert(__is_trivially_constructible(TemplateCtorNoMoveSFINAE, const TemplateCtorNoMoveSFINAE &), "");
+static_assert(__is_trivially_constructible(TemplateCtorNoMoveSFINAE, TemplateCtorNoMoveSFINAE &&), "");
+
+struct UseTemplateCtorNoMoveSFINAE {
+ TemplateCtorNoMoveSFINAE tcnm;
+};
+static_assert(__is_trivially_constructible(UseTemplateCtorNoMoveSFINAE, const UseTemplateCtorNoMoveSFINAE &), "");
+static_assert(__is_trivially_constructible(UseTemplateCtorNoMoveSFINAE, UseTemplateCtorNoMoveSFINAE &&), "");
+
+namespace TrivialityDependsOnImplicitDeletion {
+ struct PrivateMove {
+ PrivateMove(const PrivateMove &) = default;
+ private:
+ PrivateMove(PrivateMove &&);
+ friend class Access;
+ };
+ static_assert(__is_trivially_constructible(PrivateMove, const PrivateMove &), "");
+ static_assert(!__is_trivially_constructible(PrivateMove, PrivateMove &&), "");
+
+ struct NoAccess {
+ PrivateMove pm;
+ // NoAccess's move would be deleted, so is suppressed,
+ // so moves of it use PrivateMove's copy ctor, which is trivial.
+ };
+ static_assert(__is_trivially_constructible(NoAccess, const NoAccess &), "");
+ static_assert(__is_trivially_constructible(NoAccess, NoAccess &&), "");
+ struct TopNoAccess : NoAccess {};
+ static_assert(__is_trivially_constructible(TopNoAccess, const TopNoAccess &), "");
+ static_assert(__is_trivially_constructible(TopNoAccess, TopNoAccess &&), "");
+
+ struct Access {
+ PrivateMove pm;
+ // NoAccess's move would *not* be deleted, so is *not* suppressed,
+ // so moves of it use PrivateMove's move ctor, which is not trivial.
+ };
+ static_assert(__is_trivially_constructible(Access, const Access &), "");
+ static_assert(!__is_trivially_constructible(Access, Access &&), "");
+ struct TopAccess : Access {};
+ static_assert(__is_trivially_constructible(TopAccess, const TopAccess &), "");
+ static_assert(!__is_trivially_constructible(TopAccess, TopAccess &&), "");
+}
+
+namespace TrivialityDependsOnDestructor {
+ class HasInaccessibleDestructor { ~HasInaccessibleDestructor() = default; };
+ struct HasImplicitlyDeletedDestructor : HasInaccessibleDestructor {};
+ struct HasImplicitlyDeletedCopyCtor : HasImplicitlyDeletedDestructor {
+ HasImplicitlyDeletedCopyCtor() = default;
+ template<typename T> HasImplicitlyDeletedCopyCtor(T &&);
+ // Copy ctor is deleted but trivial.
+ // Move ctor is suppressed.
+ HasImplicitlyDeletedCopyCtor(const HasImplicitlyDeletedCopyCtor&) = default;
+ HasImplicitlyDeletedCopyCtor(HasImplicitlyDeletedCopyCtor&&) = default;
+ };
+ struct Test : HasImplicitlyDeletedCopyCtor {
+ Test(const Test&) = default;
+ Test(Test&&) = default;
+ };
+ // Implicit copy ctor calls deleted trivial copy ctor.
+ static_assert(__has_trivial_copy(Test), "");
+ // This is false because the destructor is deleted.
+ static_assert(!__is_trivially_constructible(Test, const Test &), "");
+ // Implicit move ctor calls template ctor.
+ static_assert(!__is_trivially_constructible(Test, Test &&), "");
+
+ struct HasAccessibleDestructor { ~HasAccessibleDestructor() = default; };
+ struct HasImplicitlyDefaultedDestructor : HasAccessibleDestructor {};
+ struct HasImplicitlyDefaultedCopyCtor : HasImplicitlyDefaultedDestructor {
+ template<typename T> HasImplicitlyDefaultedCopyCtor(T &&);
+ // Copy ctor is trivial.
+ // Move ctor is trivial.
+ };
+ struct Test2 : HasImplicitlyDefaultedCopyCtor {};
+ // Implicit copy ctor calls trivial copy ctor.
+ static_assert(__has_trivial_copy(Test2), "");
+ static_assert(__is_trivially_constructible(Test2, const Test2 &), "");
+ // Implicit move ctor calls trivial move ctor.
+ static_assert(__is_trivially_constructible(Test2, Test2 &&), "");
+}
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