From 91c10b66c23178e27bbff0e9173570c63e342736 Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Tue, 31 Aug 2021 11:46:39 +0200
Subject: uhd: math: Add a sign() function

We've been having issues with moving locations of Boost headers for this
function, and it's simple enough to implement ourselves.
---
 host/tests/math_test.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'host/tests')

diff --git a/host/tests/math_test.cpp b/host/tests/math_test.cpp
index c1b6793bb..1fb01f5c1 100644
--- a/host/tests/math_test.cpp
+++ b/host/tests/math_test.cpp
@@ -17,3 +17,10 @@ BOOST_AUTO_TEST_CASE(test_gcd)
 {
     BOOST_CHECK_EQUAL(uhd::math::gcd<int>(6, 15), 3);
 }
+
+BOOST_AUTO_TEST_CASE(test_sign)
+{
+    BOOST_CHECK_EQUAL(uhd::math::sign(2.3), +1);
+    BOOST_CHECK_EQUAL(uhd::math::sign(-2.3), -1);
+    BOOST_CHECK_EQUAL(uhd::math::sign(0.0), 0);
+}
-- 
cgit v1.2.3