[gcc r13-2570] libstdc++: Rename parameter to avoid darwin __weak qualifier

[Jonathan Wakely <redi@gcc.gnu.org>]

https://gcc.gnu.org/g:007680f946eaffa3c6321624129e1ec18e673091

commit r13-2570-g007680f946eaffa3c6321624129e1ec18e673091
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Sep 9 21:03:58 2022 +0100

    libstdc++: Rename parameter to avoid darwin __weak qualifier
    
    libstdc++-v3/ChangeLog:
    
            * include/bits/atomic_base.h (__atomic_impl::__compare_exchange):
            Rename __weak to __is_weak.
            * testsuite/17_intro/names.cc: Add __weak and __strong.

Diff:
---
 libstdc++-v3/include/bits/atomic_base.h  | 7 ++++---
 libstdc++-v3/testsuite/17_intro/names.cc | 4 ++++
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/libstdc++-v3/include/bits/atomic_base.h b/libstdc++-v3/include/bits/atomic_base.h
index 29315547aab..6ea3268fdf0 100644
--- a/libstdc++-v3/include/bits/atomic_base.h
+++ b/libstdc++-v3/include/bits/atomic_base.h
@@ -990,7 +990,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     template<typename _Tp>
       _GLIBCXX_ALWAYS_INLINE bool
       __compare_exchange(_Tp& __val, _Val<_Tp>& __e, _Val<_Tp>& __i,
-			 bool __weak, memory_order __s, memory_order __f) noexcept
+			 bool __is_weak,
+			 memory_order __s, memory_order __f) noexcept
       {
 	__glibcxx_assert(__is_valid_cmpexch_failure_order(__f));
 
@@ -1005,7 +1006,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	    __atomic_impl::__clear_padding(*__exp);
 	    if (__atomic_compare_exchange(std::__addressof(__val), __exp,
 					  __atomic_impl::__clear_padding(__i),
-					  __weak, int(__s), int(__f)))
+					  __is_weak, int(__s), int(__f)))
 	      return true;
 	    __builtin_memcpy(std::__addressof(__e), __exp, sizeof(_Vp));
 	    return false;
@@ -1014,7 +1015,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	  return __atomic_compare_exchange(std::__addressof(__val),
 					   std::__addressof(__e),
 					   std::__addressof(__i),
-					   __weak, int(__s), int(__f));
+					   __is_weak, int(__s), int(__f));
       }
   } // namespace __atomic_impl
 
diff --git a/libstdc++-v3/testsuite/17_intro/names.cc b/libstdc++-v3/testsuite/17_intro/names.cc
index ede2fe8caa7..86fb8f8999b 100644
--- a/libstdc++-v3/testsuite/17_intro/names.cc
+++ b/libstdc++-v3/testsuite/17_intro/names.cc
@@ -129,6 +129,10 @@
 // This clashes with newlib so don't use it.
 # define __lockable		cannot be used as an identifier
 
+#ifndef __APPLE__
+#define __weak   predefined qualifier on darwin
+#define __strong predefined qualifier on darwin
+#endif
 
 // Common template parameter names
 #define OutputIterator		OutputIterator is not a reserved name