From e6c68e05b0d375208868db3f077e9347bf2706c6 Mon Sep 17 00:00:00 2001
From: MistEO <mistereo@hotmail.com>
Date: Sun, 17 Mar 2024 00:04:29 +0800
Subject: [PATCH] perf: Prevent non-array uses fixed_array_size

---
 include/common/utils.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/common/utils.hpp b/include/common/utils.hpp
index ceac5a3..2f6177f 100644
--- a/include/common/utils.hpp
+++ b/include/common/utils.hpp
@@ -69,7 +69,7 @@ constexpr bool is_fixed_array = false;
 template <template <typename, size_t> typename arr_t, typename value_t, size_t size>
 constexpr bool is_fixed_array<arr_t<value_t, size>> = true;
 
-template <typename T, typename = void>
+template <typename T, typename = std::enable_if_t<is_fixed_array<T>>>
 constexpr size_t fixed_array_size = 0;
 template <template <typename, size_t> typename arr_t, typename value_t, size_t size>
 constexpr size_t fixed_array_size<arr_t<value_t, size>> = size;