From db41e7094699a17cb1709315277e030e1ecb435e Mon Sep 17 00:00:00 2001
From: Vladislav Shchapov <phprus@gmail.com>
Date: Tue, 31 Aug 2021 19:54:42 +0500
Subject: [PATCH] Workaround to MSVC bug (#2474) (#2476)

---
 include/fmt/core.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/fmt/core.h b/include/fmt/core.h
index 05ee3806ce88..c8158b7481bf 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -1371,10 +1371,10 @@ template <typename Context> struct arg_mapper {
   }
 
   template <typename T, typename U = remove_cvref_t<T>>
-  using formattable =
-      bool_constant<is_const_formattable<U, Context>() ||
-                    !std::is_const<remove_reference_t<T>>::value ||
-                    has_fallback_formatter<U, char_type>::value>;
+  struct formattable
+      : bool_constant<is_const_formattable<U, Context>() ||
+                      !std::is_const<remove_reference_t<T>>::value ||
+                      has_fallback_formatter<U, char_type>::value> {};
 
 #if FMT_MSC_VER != 0 && FMT_MSC_VER < 1910
   // Workaround a bug in MSVC.