From 1e2f457ee118f55d753a4c124315ab17f8eb5f1b Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Thu, 22 Jul 2010 23:27:57 -0700
Subject: usrp: fix the N/2 cordic tune issue, use boost math sign inplace of
 my signum

---
 host/lib/usrp/tune_helper.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'host/lib/usrp/tune_helper.cpp')

diff --git a/host/lib/usrp/tune_helper.cpp b/host/lib/usrp/tune_helper.cpp
index c5cce3ecf..e516477d3 100644
--- a/host/lib/usrp/tune_helper.cpp
+++ b/host/lib/usrp/tune_helper.cpp
@@ -16,10 +16,10 @@
 //
 
 #include <uhd/usrp/tune_helper.hpp>
-#include <uhd/utils/algorithm.hpp>
 #include <uhd/usrp/subdev_props.hpp>
 #include <uhd/usrp/dsp_props.hpp>
 #include <uhd/usrp/dboard_iface.hpp> //unit_t
+#include <boost/math/special_functions/sign.hpp>
 #include <cmath>
 
 using namespace uhd;
@@ -46,7 +46,7 @@ static tune_result_t tune_xx_subdev_and_dxc(
     double delta_freq = std::fmod(target_freq - actual_inter_freq, dxc_sample_rate);
     bool outside_of_nyquist = std::abs(delta_freq) > dxc_sample_rate/2.0;
     double target_dxc_freq = (outside_of_nyquist)?
-        std::signum(delta_freq)*dxc_sample_rate - delta_freq : -delta_freq;
+        boost::math::sign(delta_freq)*dxc_sample_rate - delta_freq : -delta_freq;
 
     //invert the sign on the dxc freq given the following conditions
     if (unit == dboard_iface::UNIT_TX) target_dxc_freq *= -1.0;
-- 
cgit v1.2.3