From afbfd0e78176d47c495a29c795fbd3690fa0ded3 Mon Sep 17 00:00:00 2001
From: Steven Le Rouzic <steven.lerouzic@gmail.com>
Date: Thu, 3 Apr 2025 23:18:51 +0200
Subject: Add numeric library

---
 asl/base/numeric.hpp | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 asl/base/numeric.hpp

(limited to 'asl/base/numeric.hpp')

diff --git a/asl/base/numeric.hpp b/asl/base/numeric.hpp
new file mode 100644
index 0000000..bbd229d
--- /dev/null
+++ b/asl/base/numeric.hpp
@@ -0,0 +1,43 @@
+// Copyright 2025 Steven Le Rouzic
+//
+// SPDX-License-Identifier: BSD-3-Clause
+
+#pragma once
+
+#include "asl/base/integers.hpp"
+#include "asl/base/bit.hpp"
+#include "asl/base/meta.hpp"
+
+namespace asl
+{
+
+template<is_integer T>
+constexpr bool is_pow2(T x)
+{
+    using unsigned_type = select_t<is_unsigned_integer<T>, T, as_unsigned_integer<T>>;
+    return x > 0 && has_single_bit(static_cast<unsigned_type>(x));
+}
+
+template<typename T>
+concept is_numeric = is_integer<T> || is_floating_point<T>;
+
+template<is_numeric T>
+constexpr T min(T a, T b)
+{
+    return (a <= b) ? a : b;
+}
+
+template<is_numeric T>
+constexpr T max(T a, T b)
+{
+    return (a >= b) ? a : b;
+}
+
+template<is_numeric T>
+constexpr T clamp(T x, T a, T b)
+{
+    return min(max(x, a), b);
+}
+
+} // namespace asl
+
-- 
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