[Commit-gnuradio] [gnuradio] 06/13: added subtraction and addition to time_spec_t

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jcorgan pushed a commit to branch master
in repository gnuradio.

commit 9df52c1b0c598872c7ae1cd92c885ef1e92f4a4f
Author: Marcus Müller <address@hidden>
Date:   Mon Apr 14 23:47:50 2014 +0200

    added subtraction and addition to time_spec_t
---
 gr-uhd/python/uhd/qa_uhd.py |  8 ++++++++
 gr-uhd/swig/uhd_swig.i      | 15 +++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/gr-uhd/python/uhd/qa_uhd.py b/gr-uhd/python/uhd/qa_uhd.py
index 511c098..4df0d42 100644
--- a/gr-uhd/python/uhd/qa_uhd.py
+++ b/gr-uhd/python/uhd/qa_uhd.py
@@ -35,6 +35,14 @@ class test_uhd(gr_unittest.TestCase):
         They may not have a UHD device connected, etc.  Don't try to run 
anything"""
         pass
 
+    def test_time_spec_t (self):
+        seconds = 42.0
+        time = uhd.time_spec_t(seconds)
+        twice_time = time + time;
+        zero_time = time - time;
+        self.assertEqual(time.get_real_secs() * 2,  seconds * 2 )
+        self.assertEqual(time.get_real_secs() - time.get_real_secs() , 0.0)
+
     def test_stream_args_channel_foo(self):
         """
         Try to manipulate the stream args channels for proper swig'ing checks.
diff --git a/gr-uhd/swig/uhd_swig.i b/gr-uhd/swig/uhd_swig.i
index c98416f..4eaef91 100644
--- a/gr-uhd/swig/uhd_swig.i
+++ b/gr-uhd/swig/uhd_swig.i
@@ -84,6 +84,21 @@
 
 %include <uhd/types/time_spec.hpp>
 
+%extend uhd::time_spec_t{
+    uhd::time_spec_t __add__(const uhd::time_spec_t &what)
+    {
+        uhd::time_spec_t temp = *self;
+        temp += what;
+        return temp;
+    }
+    uhd::time_spec_t __sub__(const uhd::time_spec_t &what)
+    {
+        uhd::time_spec_t temp = *self;
+        temp -= what;
+        return temp;
+    }
+};
+
 %include <uhd/types/stream_cmd.hpp>
 
 %include <uhd/types/clock_config.hpp>