From 55c8b9e5f24b9ff526a59d820a66b428d2774e34 Mon Sep 17 00:00:00 2001
From: Johan Mabille <johan.mabille@gmail.com>
Date: Sat, 6 Apr 2024 08:14:39 +0200
Subject: [PATCH] Deducing guide for clang

---
 include/sparrow/allocator.hpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/sparrow/allocator.hpp b/include/sparrow/allocator.hpp
index 2270eb12..ae514081 100644
--- a/include/sparrow/allocator.hpp
+++ b/include/sparrow/allocator.hpp
@@ -147,9 +147,10 @@ namespace sparrow
             return std::forward<A>(alloc);
         }
 
-        template <class... Ts>
-        struct overloaded : Ts... { using Ts::operator()...; };
-
+        template <class... Ts> struct overloaded : Ts... { using Ts::operator()...; };
+        // Although not required in C++20, clang needs it to build the code below
+        template <class... Ts> overloaded(Ts...) -> overloaded<Ts...>;
+        
         storage_type copy_storage(const storage_type& rhs) const
         {
             return std::visit(overloaded {