diff --git a/include_std/algorithm b/include_std/algorithm
index 85eb61b..918bc20 100644
--- a/include_std/algorithm
+++ b/include_std/algorithm
@@ -52,6 +52,19 @@ namespace std
 		return (a > b) ? a : b;
 	}
 
+	template <typename T>
+	constexpr const T &clamp(const T &v, const T &lo, const T &hi)
+	{
+		return std::max(lo, std::min(v, hi));
+	}
+
+	template <class T, class Compare>
+	constexpr const T &clamp(const T &v, const T &lo, const T &hi, Compare comp)
+	{
+		return comp(v, lo) ? lo : comp(hi, v) ? hi
+											  : v;
+	}
+
 	template <class InputIt, class T>
 	constexpr InputIt find(InputIt first, InputIt last, const T &value)
 	{