From 879040a8fea5f44a87eea431d11433680ff9d6c9 Mon Sep 17 00:00:00 2001
From: Pavel Novikov <dev-ape@yandex.ru>
Date: Tue, 19 Oct 2021 20:20:17 +0300
Subject: [PATCH] fixed 'constexpr'-ness of ctor with length calculation

---
 include/fmt/core.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/fmt/core.h b/include/fmt/core.h
index c5f378b2..cd54f81c 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -1112,8 +1112,8 @@ enum class type {
 
 template <typename Char> struct basic_c_string_view : basic_string_view<Char> {
   using basic_string_view<Char>::basic_string_view;
-  FMT_CONSTEXPR basic_c_string_view() = default;
-  FMT_CONSTEXPR basic_c_string_view(const Char* val)
+  constexpr basic_c_string_view() = default;
+  FMT_CONSTEXPR_CHAR_TRAITS basic_c_string_view(const Char* val)
       : basic_string_view<Char>{
             val, val ? std::char_traits<Char>::length(val) : 0} {}
 };