From 188fbb17cfd18c87f60ec56f62476f97ef2779bb Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Sat, 19 Jun 2021 00:06:52 +0200
Subject: uhd: Remove all occurences of boost::math::*round()

Its behaviour is almost identical to std::lround, which we use instead.
The only downside of std::lround is that it always returns a long, which
we don't always need. We thus add some casts for those cases to make the
compiler happy.
---
 host/lib/usrp/dboard/db_dbsrx2.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'host/lib/usrp/dboard/db_dbsrx2.cpp')

diff --git a/host/lib/usrp/dboard/db_dbsrx2.cpp b/host/lib/usrp/dboard/db_dbsrx2.cpp
index 7635327b1..16a418417 100644
--- a/host/lib/usrp/dboard/db_dbsrx2.cpp
+++ b/host/lib/usrp/dboard/db_dbsrx2.cpp
@@ -19,8 +19,8 @@
 #include <uhd/utils/static.hpp>
 #include <boost/assign/list_of.hpp>
 #include <boost/format.hpp>
-#include <boost/math/special_functions/round.hpp>
 #include <boost/thread.hpp>
+#include <cmath>
 #include <functional>
 #include <utility>
 
@@ -258,7 +258,7 @@ double dbsrx2::set_lo_freq(double target_freq)
 
     N       = (target_freq * R * ext_div) / (ref_freq); // actual spec range is (19, 251)
     intdiv  = int(std::floor(N)); //  if (intdiv < 19  or intdiv > 251) continue;
-    fracdiv = boost::math::iround((N - intdiv) * double(1 << 20));
+    fracdiv = static_cast<int>(std::lround((N - intdiv) * double(1 << 20)));
 
     // calculate the actual freq from the values above
     N        = double(intdiv) + double(fracdiv) / double(1 << 20);
@@ -305,7 +305,7 @@ double dbsrx2::set_lo_freq(double target_freq)
  */
 static int gain_to_bbg_vga_reg(double& gain)
 {
-    int reg = boost::math::iround(dbsrx2_gain_ranges["BBG"].clip(gain));
+    int reg = static_cast<int>(std::lround(dbsrx2_gain_ranges["BBG"].clip(gain)));
 
     gain = double(reg);
 
-- 
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