svn commit: r297322 - head/contrib/libc++/include
Dimitry Andric
dim at FreeBSD.org
Sun Mar 27 21:20:44 UTC 2016
Author: dim
Date: Sun Mar 27 21:20:43 2016
New Revision: 297322
URL: https://svnweb.freebsd.org/changeset/base/297322
Log:
Pull in r255683 from upstream libc++ trunk (by Eric Fiselier):
[libcxx] Enable noexcept for GCC 4.6 and greater
Summary:
This patch allows GCC 4.6 and above to use `noexcept` as opposed to
`throw()`.
Is it an ABI safe change to suddenly switch on `noexcept`? I imagine
it must be because it's disabled in w/ clang in C++03 but not C++11.
Reviewers: danalbert, jroelofs, mclow.lists
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D15516
This should fix errors from gcc 4.6 and higher when compiling llvm-cov
and/or other llvm tools.
Reported by: bdrewery
Modified:
head/contrib/libc++/include/__config
Modified: head/contrib/libc++/include/__config
==============================================================================
--- head/contrib/libc++/include/__config Sun Mar 27 20:02:21 2016 (r297321)
+++ head/contrib/libc++/include/__config Sun Mar 27 21:20:43 2016 (r297322)
@@ -364,14 +364,8 @@ typedef __char32_t char32_t;
#endif
#endif
-#if (__has_feature(cxx_noexcept))
-# define _NOEXCEPT noexcept
-# define _NOEXCEPT_(x) noexcept(x)
-# define _NOEXCEPT_OR_FALSE(x) noexcept(x)
-#else
-# define _NOEXCEPT throw()
-# define _NOEXCEPT_(x)
-# define _NOEXCEPT_OR_FALSE(x) false
+#if !(__has_feature(cxx_noexcept))
+#define _LIBCPP_HAS_NO_NOEXCEPT
#endif
#if __has_feature(underlying_type)
@@ -439,10 +433,6 @@ namespace std {
#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
#endif
-#define _NOEXCEPT throw()
-#define _NOEXCEPT_(x)
-#define _NOEXCEPT_OR_FALSE(x) false
-
#ifndef __GXX_EXPERIMENTAL_CXX0X__
#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
@@ -456,6 +446,7 @@ namespace std {
#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
#define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS
#define _LIBCPP_HAS_NO_STRONG_ENUMS
+#define _LIBCPP_HAS_NO_NOEXCEPT
#else // __GXX_EXPERIMENTAL_CXX0X__
@@ -479,6 +470,7 @@ namespace std {
#endif // _GNUC_VER < 404
#if _GNUC_VER < 406
+#define _LIBCPP_HAS_NO_NOEXCEPT
#define _LIBCPP_HAS_NO_NULLPTR
#endif
@@ -513,15 +505,14 @@ using namespace _LIBCPP_NAMESPACE __attr
#define _LIBCPP_HAS_NO_UNICODE_CHARS
#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
+#define _LIBCPP_HAS_NO_NOEXCEPT
#define __alignof__ __alignof
#define _LIBCPP_NORETURN __declspec(noreturn)
#define _LIBCPP_UNUSED
#define _ALIGNAS(x) __declspec(align(x))
#define _LIBCPP_HAS_NO_VARIADICS
-#define _NOEXCEPT throw ()
-#define _NOEXCEPT_(x)
-#define _NOEXCEPT_OR_FALSE(x) false
+
#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
#define _LIBCPP_END_NAMESPACE_STD }
@@ -541,14 +532,11 @@ namespace std {
#define _LIBCPP_NORETURN __attribute__((noreturn))
#define _LIBCPP_UNUSED
-#define _NOEXCEPT throw()
-#define _NOEXCEPT_(x)
-#define _NOEXCEPT_OR_FALSE(x) false
-
#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
#define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS
#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+#define _LIBCPP_HAS_NO_NOEXCEPT
#define _LIBCPP_HAS_NO_NULLPTR
#define _LIBCPP_HAS_NO_UNICODE_CHARS
#define _LIBCPP_HAS_IS_BASE_OF
@@ -572,6 +560,14 @@ namespace std {
#endif // __clang__ || __GNUC__ || _MSC_VER || __IBMCPP__
+#ifndef _LIBCPP_HAS_NO_NOEXCEPT
+# define _NOEXCEPT noexcept
+# define _NOEXCEPT_(x) noexcept(x)
+#else
+# define _NOEXCEPT throw()
+# define _NOEXCEPT_(x)
+#endif
+
#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
typedef unsigned short char16_t;
typedef unsigned int char32_t;
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