tracker/{pt,aruco}: fix snprintf invocation

2 files changed, 1 insertions, 3 deletions

diff --git a/tracker-aruco/ftnoir_tracker_aruco.cpp b/tracker-aruco/ftnoir_tracker_aruco.cpp
index bdb41d44..9bf34c51 100644
--- a/tracker-aruco/ftnoir_tracker_aruco.cpp
+++ b/tracker-aruco/ftnoir_tracker_aruco.cpp
@@ -225,7 +225,6 @@ void aruco_tracker::draw_ar(bool ok)
 
     char buf[9];
     ::snprintf(buf, sizeof(buf)-1, "Hz: %d", clamp(int(fps), 0, 9999));
-    buf[sizeof(buf)-1] = '\0';
     cv::putText(frame, buf, cv::Point(10, 32), cv::FONT_HERSHEY_PLAIN, 2, cv::Scalar(0, 255, 0), 1);
 }
 
diff --git a/tracker-pt/module/point_extractor.cpp b/tracker-pt/module/point_extractor.cpp
index 1a75a3e3..7ad9925a 100644
--- a/tracker-pt/module/point_extractor.cpp
+++ b/tracker-pt/module/point_extractor.cpp
@@ -225,8 +225,7 @@ static void draw_blobs(cv::Mat& preview_frame, const blob* blobs, unsigned nblob
                    cv::LINE_AA, fract_bits);
 
         char buf[16];
-        buf[sizeof(buf)-1] = '\0';
-        std::snprintf(buf, sizeof(buf) - 1, "%.2fpx", (double)b.radius);
+        std::snprintf(buf, sizeof(buf), "%.2fpx", (double)b.radius);
 
         auto text_color = k >= PointModel::N_POINTS
                           ? cv::Scalar(160, 160, 160)