[libc++] Remove various C++03 feature test macros
Summary:
Libc++ still uses per-feature configuration macros when configuring for C++11. However libc++ requires a feature-complete C++11 compiler so there is no reason to check individual features. This patch starts the process of removing the feature specific macros and replacing their usage with `_LIBCPP_CXX03_LANG`.
This patch removes the __config macros:
* _LIBCPP_HAS_NO_TRAILING_RETURN
* _LIBCPP_HAS_NO_TEMPLATE_ALIASES
* _LIBCPP_HAS_NO_ADVANCED_SFINAE
* _LIBCPP_HAS_NO_DEFAULT_FUNCTION_TEMPLATE_ARGS
* _LIBCPP_HAS_NO_STATIC_ASSERT
As a drive I also changed our C++03 static_assert to use _Static_assert if available.
I plan to commit this without review if nobody voices an objection.
Reviewers: mclow.lists
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D24895
llvm-svn: 282347
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 54613ab4d448d5df567ae12451ba37cae73f1ac7
diff --git a/include/iterator b/include/iterator
index 0caabbb..188a480 100644
--- a/include/iterator
+++ b/include/iterator
@@ -1566,7 +1566,7 @@
return __array + _Np;
}
-#if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_TRAILING_RETURN)
+#if !defined(_LIBCPP_CXX03_LANG)
template <class _Cp>
inline _LIBCPP_INLINE_VISIBILITY
@@ -1689,7 +1689,7 @@
#endif
-#else // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_TRAILING_RETURN)
+#else // defined(_LIBCPP_CXX03_LANG)
template <class _Cp>
inline _LIBCPP_INLINE_VISIBILITY
@@ -1723,7 +1723,7 @@
return __c.end();
}
-#endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_TRAILING_RETURN)
+#endif // !defined(_LIBCPP_CXX03_LANG)
#if _LIBCPP_STD_VER > 14
template <class _Cont>