As I recall, this was intentional. The supported way to check for these is has_builtin. The has_feature support is provided only for backwards compatibility. On 24 May 2016 9:59 a.m., "David Majnemer via cfe-commits" < cfe-commits@lists.llvm.org> wrote:
> Author: majnemer > Date: Tue May 24 11:53:13 2016 > New Revision: 270580 > > URL: http://llvm.org/viewvc/llvm-project?rev=270580&view=rev > Log: > [Lex] Support more type-traits in __has_feature > > It looks like we forgot to update the __has_feature support when we > added some of the type traits. > > Modified: > cfe/trunk/lib/Lex/PPMacroExpansion.cpp > cfe/trunk/test/Lexer/has_feature_type_traits.cpp > > Modified: cfe/trunk/lib/Lex/PPMacroExpansion.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/PPMacroExpansion.cpp?rev=270580&r1=270579&r2=270580&view=diff > > ============================================================================== > --- cfe/trunk/lib/Lex/PPMacroExpansion.cpp (original) > +++ cfe/trunk/lib/Lex/PPMacroExpansion.cpp Tue May 24 11:53:13 2016 > @@ -1191,8 +1191,10 @@ static bool HasFeature(const Preprocesso > .Case("has_nothrow_copy", LangOpts.CPlusPlus) > .Case("has_nothrow_constructor", LangOpts.CPlusPlus) > .Case("has_trivial_assign", LangOpts.CPlusPlus) > + .Case("has_trivial_move_assign", LangOpts.CPlusPlus) > .Case("has_trivial_copy", LangOpts.CPlusPlus) > .Case("has_trivial_constructor", LangOpts.CPlusPlus) > + .Case("has_trivial_move_constructor", LangOpts.CPlusPlus) > .Case("has_trivial_destructor", LangOpts.CPlusPlus) > .Case("has_virtual_destructor", LangOpts.CPlusPlus) > .Case("is_abstract", LangOpts.CPlusPlus) > @@ -1201,14 +1203,21 @@ static bool HasFeature(const Preprocesso > .Case("is_class", LangOpts.CPlusPlus) > .Case("is_constructible", LangOpts.CPlusPlus) > .Case("is_convertible_to", LangOpts.CPlusPlus) > + .Case("is_destructible", > + LangOpts.CPlusPlus &&LangOpts.MicrosoftExt) > .Case("is_empty", LangOpts.CPlusPlus) > .Case("is_enum", LangOpts.CPlusPlus) > .Case("is_final", LangOpts.CPlusPlus) > .Case("is_literal", LangOpts.CPlusPlus) > - .Case("is_standard_layout", LangOpts.CPlusPlus) > + .Case("is_nothrow_assignable", LangOpts.CPlusPlus) > + .Case("is_nothrow_constructible", LangOpts.CPlusPlus) > + .Case("is_nothrow_destructible", > + LangOpts.CPlusPlus && LangOpts.MicrosoftExt) > .Case("is_pod", LangOpts.CPlusPlus) > .Case("is_polymorphic", LangOpts.CPlusPlus) > - .Case("is_sealed", LangOpts.MicrosoftExt) > + .Case("is_sealed", > + LangOpts.CPlusPlus && LangOpts.MicrosoftExt) > + .Case("is_standard_layout", LangOpts.CPlusPlus) > .Case("is_trivial", LangOpts.CPlusPlus) > .Case("is_trivially_assignable", LangOpts.CPlusPlus) > .Case("is_trivially_constructible", LangOpts.CPlusPlus) > > Modified: cfe/trunk/test/Lexer/has_feature_type_traits.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Lexer/has_feature_type_traits.cpp?rev=270580&r1=270579&r2=270580&view=diff > > ============================================================================== > --- cfe/trunk/test/Lexer/has_feature_type_traits.cpp (original) > +++ cfe/trunk/test/Lexer/has_feature_type_traits.cpp Tue May 24 11:53:13 > 2016 > @@ -20,6 +20,16 @@ int has_trivial_assign(); > #endif > // CHECK: int has_trivial_assign(); > > +#if __has_feature(has_trivial_move_assign) > +int has_trivial_move_assign(); > +#endif > +// CHECK: int has_trivial_move_assign(); > + > +#if __has_feature(has_trivial_move_constructor) > +int has_trivial_move_constructor(); > +#endif > +// CHECK: int has_trivial_move_constructor(); > + > #if __has_feature(has_trivial_copy) > int has_trivial_copy(); > #endif > @@ -105,6 +115,16 @@ int is_literal(); > #endif > // CHECK: int is_literal(); > > +#if __has_feature(is_nothrow_assignable) > +int is_nothrow_assignable(); > +#endif > +// CHECK: int is_nothrow_assignable(); > + > +#if __has_feature(is_nothrow_constructible) > +int is_nothrow_constructible(); > +#endif > +// CHECK: int is_nothrow_constructible(); > + > #if __has_feature(is_standard_layout) > int is_standard_layout(); > #endif > > > _______________________________________________ > cfe-commits mailing list > cfe-commits@lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits >
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