From d5495a52cef11e4a0b0250fc7b7aef2ea7e18a79 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Sun, 29 Nov 2020 12:24:52 +0300
Subject: [PATCH] Add geom::sign function

---
 libs/geom/include/psemek/geom/math.hpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/libs/geom/include/psemek/geom/math.hpp b/libs/geom/include/psemek/geom/math.hpp
index 5be880fe..1ef70b72 100644
--- a/libs/geom/include/psemek/geom/math.hpp
+++ b/libs/geom/include/psemek/geom/math.hpp
@@ -8,6 +8,17 @@
 namespace psemek::geom
 {
 
+	template <typename T>
+	T sign(T const & x)
+	{
+		if (x > 0)
+			return 1;
+		else if (x < 0)
+			return -1;
+		else
+			return 0;
+	}
+
 	template <typename T>
 	auto sqr(T const & x)
 	{