From a345b894d3e6cc4b0b4fdd02c200217df6b3a425 Mon Sep 17 00:00:00 2001
From: Ming-Hung Tsai <mtsai@redhat.com>
Date: Mon, 15 Jun 2020 14:10:07 +0800
Subject: [PATCH] [math_utils] Add is_power_of_two()

---
 base/math_utils.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/base/math_utils.h b/base/math_utils.h
index 9c1bb0c..de00d88 100644
--- a/base/math_utils.h
+++ b/base/math_utils.h
@@ -34,6 +34,11 @@ namespace base {
 	T div_down(T const &v, T const &divisor) {
 		return v / divisor;
 	}
+
+	template <typename T>
+	bool is_power_of_two(T const v) {
+		return !(v & (v - 1));
+	}
 }
 
 //----------------------------------------------------------------