From e1d3725b879fa6ac2d10e108bc8c7d0382dd1cbb Mon Sep 17 00:00:00 2001
From: szdytom <szdytom@qq.com>
Date: Mon, 4 Aug 2025 16:18:27 +0800
Subject: [PATCH] feat: add requires clause for totally ordered keys in
 SmallMap

Signed-off-by: szdytom <szdytom@qq.com>
---
 util/include/istd_util/small_map.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/util/include/istd_util/small_map.h b/util/include/istd_util/small_map.h
index 5726da7..c3f8696 100644
--- a/util/include/istd_util/small_map.h
+++ b/util/include/istd_util/small_map.h
@@ -21,6 +21,7 @@ namespace istd {
  * @tparam T_Value Type of the value.
  */
 template<typename T_Key, typename T_Value>
+requires std::totally_ordered<T_Key>
 class SmallMap {
 	/**
 	 * @brief Internal entry structure for key-value pairs.