From: Kefu Chai <tchaikov@gmail.com>
Date: Thu, 19 Jun 2025 09:57:18 +0000 (+0800)
Subject: include/buffer_raw: avoid using std::aligned_storage_t
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=cb680641df3f005f09ac3cbd96bcb1637b70a193;p=ceph.git

include/buffer_raw: avoid using std::aligned_storage_t

std::aligned_storage_t was deprecated in C++23, to be prepared for
it, let's use alignas for the same behavior.

Signed-off-by: Kefu Chai <tchaikov@gmail.com>
---

diff --git a/src/include/buffer_raw.h b/src/include/buffer_raw.h
index 2298525c9599a..6422560880639 100644
--- a/src/include/buffer_raw.h
+++ b/src/include/buffer_raw.h
@@ -30,8 +30,9 @@ inline namespace v15_2_0 {
   public:
     // In the future we might want to have a slab allocator here with few
     // embedded slots. This would allow to avoid the "if" in dtor of ptr_node.
-    std::aligned_storage<sizeof(ptr_node),
-			 alignof(ptr_node)>::type bptr_storage;
+    struct alignas(ptr_node) {
+      unsigned char data[sizeof(ptr_node)];
+    } bptr_storage;
   protected:
     char *data;
     unsigned len;