[libcxx-commits] [libcxx] c19a819 - [libc++] protect absent atomic types with ifdef (#82351)

[via libcxx-commits]

Author: Dominik Wójt
Date: 2024-02-27T07:27:02+01:00
New Revision: c19a81931ce47278967056927aa87a7685e5447c

URL: https://github.com/llvm/llvm-project/commit/c19a81931ce47278967056927aa87a7685e5447c
DIFF: https://github.com/llvm/llvm-project/commit/c19a81931ce47278967056927aa87a7685e5447c.diff

LOG: [libc++] protect absent atomic types with ifdef (#82351)

Otherwise modules.std-module.sh.cpp test fails with following error:
    error: no member named 'atomic_signed_lock_free' in namespace 'std'
when the types are not available.

Added: 
    

Modified: 
    libcxx/modules/std/atomic.inc

Removed: 
    


################################################################################
diff  --git a/libcxx/modules/std/atomic.inc b/libcxx/modules/std/atomic.inc
index 88b31ccdb20840..2b54cef863e571 100644
--- a/libcxx/modules/std/atomic.inc
+++ b/libcxx/modules/std/atomic.inc
@@ -111,8 +111,10 @@ export namespace std {
   using std::atomic_uintmax_t;
   using std::atomic_uintptr_t;
 
+#ifndef _LIBCPP_NO_LOCK_FREE_TYPES
   using std::atomic_signed_lock_free;
   using std::atomic_unsigned_lock_free;
+#endif
 
   // [atomics.flag], flag type and operations
   using std::atomic_flag;