From 7c43f8b896be886acd4e6e0ba61f71a8aa1ebc35 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <victor.zverovich@gmail.com>
Date: Thu, 1 Apr 2021 10:04:21 -0700
Subject: [PATCH] Don't use strlen at compile time (#2205)

---
 include/fmt/core.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/fmt/core.h b/include/fmt/core.h
index 19cb05b5..f88b4cfe 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -396,7 +396,7 @@ template <typename Char> class basic_string_view {
   FMT_CONSTEXPR
 #endif
   FMT_INLINE basic_string_view(const Char* s) : data_(s) {
-    if (std::is_same<Char, char>::value)
+    if (std::is_same<Char, char>::value && !detail::is_constant_evaluated())
       size_ = std::strlen(reinterpret_cast<const char*>(s));
     else
       size_ = std::char_traits<Char>::length(s);