[Commit-gnuradio] [gnuradio] 02/02: qtgui: fixes a problem with the number sink when fed NaN or +/-inf.

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trondeau pushed a commit to branch maint
in repository gnuradio.

commit ad3d36772d659ca1656e00bf89ecd5c02db582bc
Author: Tom Rondeau <address@hidden>
Date:   Sat Jul 26 12:07:56 2014 -0400

    qtgui: fixes a problem with the number sink when fed NaN or +/-inf.
    
    Addresses issue #704.
---
 gr-qtgui/lib/number_sink_impl.cc | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/gr-qtgui/lib/number_sink_impl.cc b/gr-qtgui/lib/number_sink_impl.cc
index 1be2653..2c31b60 100644
--- a/gr-qtgui/lib/number_sink_impl.cc
+++ b/gr-qtgui/lib/number_sink_impl.cc
@@ -296,7 +296,8 @@ namespace gr {
         for(int n = 0; n < d_nconnections; n++) {
           float *in = (float*)input_items[n];
           for(int i = 0; i < noutput_items; i++) {
-            d_avg_value[n] = d_iir[n].filter(in[i]);
+            if(std::isfinite(in[i]))
+               d_avg_value[n] = d_iir[n].filter(in[i]);
           }
         }
       }
@@ -310,8 +311,11 @@ namespace gr {
             d[n] = d_avg_value[n];
         }
         else {
-          for(int n = 0; n < d_nconnections; n++)
-            d[n] = ((float*)input_items[n])[0];
+          for(int n = 0; n < d_nconnections; n++) {
+            float x = ((float*)input_items[n])[0];
+            if(std::isfinite(x))
+               d[n] = x;
+          }
         }
         d_qApplication->postEvent(d_main_gui,
                                   new NumberUpdateEvent(d));