AnalogSignal: Set initial value for the "value at cursor" variable

[pulseview.git] / pv / views / trace / analogsignal.cpp

diff --git a/pv/views/trace/analogsignal.cpp b/pv/views/trace/analogsignal.cpp
index 2a2e2305b1b7e9b05c6ab4ed0240c7e61d010bcc..ac5e83c834880f4e85f5f9fd2c8203ebf017301b 100644 (file)
--- a/pv/views/trace/analogsignal.cpp
+++ b/pv/views/trace/analogsignal.cpp
@@ -109,7 +109,8 @@ AnalogSignal::AnalogSignal(
        neg_vdivs_(1),
        resolution_(0),
        display_type_(DisplayBoth),
-       autoranging_(true)
+       autoranging_(true),
+       value_at_hover_pos_(std::numeric_limits<float>::quiet_NaN())
 {
        axis_pen_ = AxisPen;
 
@@ -1013,7 +1014,7 @@ void AnalogSignal::hover_point_changed(const QPoint &hp)
        } else {
                try {
                        value_at_hover_pos_ = value_at_pixel_pos_.at(hp.x());
-               } catch (out_of_range) {
+               } catch (out_of_range&) {
                        value_at_hover_pos_ = std::numeric_limits<float>::quiet_NaN();
                }
        }