From 736c46e660164bf03695b6a3bfb9239235cd3dc3 Mon Sep 17 00:00:00 2001
From: Felix Heitmann <felix@tessonics.com>
Date: Fri, 10 Mar 2023 13:27:53 +0100
Subject: [PATCH] Make it C++11 compatible This is more in line with spdlog

---
 include/spdlog/details/log_attr.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/spdlog/details/log_attr.h b/include/spdlog/details/log_attr.h
index 08b78ba0..6eef1933 100644
--- a/include/spdlog/details/log_attr.h
+++ b/include/spdlog/details/log_attr.h
@@ -43,12 +43,12 @@ public:
         , value{v}
     {}
 
-    template <typename T>
-        requires std::integral<T> || std::floating_point<T>
-    attr(string_view_t k, T v) : value{std::to_string(v)} {
+    template<typename T, std::enable_if_t<std::is_integral_v<T> || std::is_floating_point_v<T>, bool> = true>
+    attr(string_view_t k, T v)
+        : value{std::to_string(v)}
+    {
         key = std::string{k.data(), k.size()};
     }
-
 };
 
 } // namespace details