2 files changed, 11 insertions, 6 deletions
diff --git a/gnuradio-runtime/include/gnuradio/tags.h b/gnuradio-runtime/include/gnuradio/tags.h
index 7e779173ea..51c662ab2f 100644
--- a/gnuradio-runtime/include/gnuradio/tags.h
+++ b/gnuradio-runtime/include/gnuradio/tags.h
@@ -33,15 +33,15 @@ struct GR_RUNTIME_API tag_t {
     //! ignore this.
     std::vector<long> marked_deleted;
 
-    /*!
-     * Comparison function to test which tag, \p x or \p y, came
-     * first in time
-     */
-    static inline bool offset_compare(const tag_t& x, const tag_t& y)
+    //! Comparison function to test which tag, \p x or \p y, came first in time
+    friend inline bool operator<(const tag_t& x, const tag_t& y)
     {
         return x.offset < y.offset;
     }
+    //! Comparison function to test which tag, \p x or \p y, came first in time
+    static inline bool offset_compare(const tag_t& x, const tag_t& y) { return x < y; }
 
+    //! equality comparison. Compares all details, except marked_delete
     inline bool operator==(const tag_t& t) const
     {
         return (t.key == key) && (t.value == value) && (t.srcid == srcid) &&
@@ -56,6 +56,7 @@ struct GR_RUNTIME_API tag_t {
     {
     }
 
+    //! Copy constructor; constructs identical tag, but doesn't copy marked_delete
     tag_t(const tag_t& rhs)
         : offset(rhs.offset), key(rhs.key), value(rhs.value), srcid(rhs.srcid)
     {
diff --git a/gnuradio-runtime/python/gnuradio/gr/bindings/tags_python.cc b/gnuradio-runtime/python/gnuradio/gr/bindings/tags_python.cc
index 2487be0100..aaa97b3879 100644
--- a/gnuradio-runtime/python/gnuradio/gr/bindings/tags_python.cc
+++ b/gnuradio-runtime/python/gnuradio/gr/bindings/tags_python.cc
@@ -1,5 +1,6 @@
 /*
  * Copyright 2020 Free Software Foundation, Inc.
+ * Copyright 2021 Marcus Müller
  *
  * This file is part of GNU Radio
  *
@@ -14,10 +15,11 @@
 /* BINDTOOL_GEN_AUTOMATIC(0)                                                       */
 /* BINDTOOL_USE_PYGCCXML(0)                                                        */
 /* BINDTOOL_HEADER_FILE(tags.h)                                        */
-/* BINDTOOL_HEADER_FILE_HASH(73eb73e445943e224cdbae24b0b0ab76)                     */
+/* BINDTOOL_HEADER_FILE_HASH(25435955fa46de2924e0b648c4f8dd43)                     */
 /***********************************************************************************/
 
 #include <pybind11/complex.h>
+#include <pybind11/operators.h>
 #include <pybind11/pybind11.h>
 #include <pybind11/stl.h>
 
@@ -44,6 +46,8 @@ void bind_tags(py::module& m)
                     py::arg("y"),
                     D(tag_t, offset_compare))
 
+        .def(py::self < py::self, D(tag_t, offset_compare))
+
         .def_readwrite("offset", &tag_t::offset)
         .def_readwrite("key", &tag_t::key)
         .def_readwrite("value", &tag_t::value)