From 718b658dcf64bbb25d98d387276add9aa188d222 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sat, 7 Aug 2021 10:54:07 +0200
Subject: Fix signature of const buffer::data_ptr()

---
 odb/details/buffer.hxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/odb/details/buffer.hxx b/odb/details/buffer.hxx
index 394d96e..558be9b 100644
--- a/odb/details/buffer.hxx
+++ b/odb/details/buffer.hxx
@@ -65,13 +65,17 @@ namespace odb
         return static_cast<T*> (data_);
       }
 
+      // Note that strictly speaking the return type should be void* const*
+      // but that would make using this function too awkward since we often
+      // store the result as void*.
+      //
       void**
       data_ptr ()
       {
         return &data_;
       }
 
-      const void**
+      const void* const*
       data_ptr () const
       {
         return &data_;
-- 
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