From 5f49bf1fab1509af188995fddac977af7c0da213 Mon Sep 17 00:00:00 2001
From: Daumantas Kavolis <12998363+dkavolis@users.noreply.github.com>
Date: Thu, 26 Sep 2019 15:36:03 +0100
Subject: [PATCH] add char_t_impl specialization for compiled format

---
 include/fmt/compile.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/fmt/compile.h b/include/fmt/compile.h
index fbe1ebff..198f1d21 100644
--- a/include/fmt/compile.h
+++ b/include/fmt/compile.h
@@ -492,6 +492,12 @@ template <typename Char>
 struct is_constexpr_compiled_format<text<Char>> : std::true_type {};
 
 #endif  // __cpp_if_constexpr
+
+template <typename T>
+struct char_t_impl<T, enable_if_t<is_compiled_format<T>::value>> {
+  using type = typename T::char_type;
+};
+
 }  // namespace internal
 
 #if FMT_USE_CONSTEXPR