Developing with C++ but not python

GNU Radio
1

Hi,
I think python file means data go downstream without interacting
with other data stream.And I have seen several example writen in c++ and
they all contain a gr_top_block which makes them similar to python
files.Any body have the experience developing in c++?And what you think
is the major difficulity(except more effort) compared to python?
Thanks.

2

Hi,
I think python file means data go downstream without interacting
with other data stream.And I have seen several example writen in c++ and
they all contain a gr_top_block which makes them similar to python
files.Any body have the experience developing in c++?And what you think
is the major difficulity(except more effort) compared to python?
Thanks.

Hi,

I am not completely sure I understood your question, but as far as I can
tell you are concerned about running python next to C++ (I guess for
performance reasons.)

The core GNURadio application, also the top_blocks are C++ code, so all
the data processing and data passing is done in compiled C++ code
(Unless
you decide to write blocks in python of course).
Python is only used for setup and connection purposes and use
automatically generated wrappers for the C++ code (so you call shared
C++
libraries from python). See also these two FAQs
http://gnuradio.org/redmine/projects/gnuradio/wiki/FAQ#Why-bother-with-Python-I-just-want-to-code-in-C

Martin

3

On Mon, Feb 25, 2013 at 09:26:22PM +0800, Gong Z. wrote:

Hi,
I think python file means data go downstream without interacting
with other data stream.And I have seen several example writen in c++
and they all contain a gr_top_block which makes them similar to
python files.Any body have the experience developing in c++?And what
you think is the major difficulity(except more effort) compared to
python?

Yep, that’s the major difference. Also, don’t forget that there are some
blocks only available in Python.

MB

–
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

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Research Associate

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