Hey Abishek,
happy easter. How did you you generate your module? gr_modtool? Does it
use any matrix methods from GSL?
Greetings,
Marcus
On 04/05/2015 05:25 PM, Abhishek Shukla wrote:
> hey Marcus,
> Now, I am able to import detect_ff block. But while running an example
> using that block, i am stuck with a runtime error
>
> File "/usr/local/lib/python2.7/dist-packages/howto/howto_swig.py",
> line 24, in swig_import_helper
> _mod = imp.load_module('_howto_swig', fp, pathname, description)
> ImportError: /usr/local/lib/libgnuradio-howto.so: undefined symbol:
> gsl_matrix_alloc
>
> >>> Done
>
> Hence not able to generate flow graph. Screen shot of given example is
> attached.
> Also i have attached .cc file of detect_ff block.
> Would you please help me out with this error.
> Thanks in advance,
> Abhishek
>
> On Wed, Apr 1, 2015 at 1:44 PM, Marcus Müller
> <[email protected] <mailto:[email protected]>> wrote:
>
> Hi Abhishek,
>
> that guide refers to a somewhat outdated API, so it doesn't apply to
> your case (that guide refers to an architecture where there was no
> separate _impl class).
>
> Have you read the guided tutorials and their chapter on C++
> blocks? It's
> explaining how you can add functions to blocks.
> I'd personally recommend just starting anew, sticking to the guided
> tutorials; wherever you got your guidance from, it mixes things that
> apply to different versions of GNU Radio, and debugging this is really
> not worth it when you could as well just start with a clean slate and
> learn things *right*.
>
> Best regards,
> Marcus
> On 04/01/2015 06:28 AM, abhishek wrote:
> > hey marcus,
> > here error given is, could not insert function, but we can according
> > to
> >
>
> "http://gnuradio.org/redmine/projects/gnuradio/wiki/BlocksCodingGuide#Public-Header-Files";.
> > Even i am not able to get last and second last error of expected "("
> > and "{", but in the code all brackets are up to the mark and used
> > properly.
> >
> > abhishek@abhishek-Inspiron-N5110:~/gr-howto/build$ make
> > Scanning dependencies of target gnuradio-howto
> > [ 5%] Building CXX object
> > lib/CMakeFiles/gnuradio-howto.dir/howto_detect_ff_impl.cc.o
> > In file included from
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.cc:27:0:
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.h:40:7: error:
> > ‘gr::howto::howto_detect_ff_impl::howto_detect_ff_impl(float, int,
> > int)’ cannot be overloaded
> > howto_detect_ff_impl(float pfa, int L, int samples);
> > ^
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.h:37:6: error: with
> > ‘gr::howto::howto_detect_ff_impl::howto_detect_ff_impl(float,
> int, int)’
> > howto_detect_ff_impl (float pfa, int L, int samples);
> > ^
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.cc:37:27: error:
> > prototype for ‘gr::howto::howto_detect_ff::sptr
> > gr::howto::howto_detect_ff::make(float, int, int)’ does not
> match any
> > in class ‘gr::howto::howto_detect_ff’
> > howto_detect_ff::sptr howto_detect_ff::make(float pfa, int
> L, int
> > samples)
> > ^
> > In file included from
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.h:24:0,
> > from
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.cc:27:
> > /home/abhishek/gr-howto/include/howto/howto_detect_ff.h:49:19:
> error:
> > candidate is: static gr::howto::howto_detect_ff::sptr
> > gr::howto::howto_detect_ff::make()
> > static sptr make();
> > ^
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.cc: In constructor
> > ‘gr::howto::howto_detect_ff_impl::howto_detect_ff_impl(float,
> int, int)’:
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.cc:57:71: warning:
> > extended initializer lists only available with -std=c++11 or
> > -std=gnu++11 [enabled by default]
> > gr::io_signature::make (MIN_OUT, MAX_OUT,
> sizeof(float)),
> > ^
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.cc:66:5: error:
> > expected ‘)’ before ‘(’ token
> > (howto_detect_ff_impl()::~howto_detect_ff_impl())
> > ^
> > /home/abhishek/gr-howto/lib/howto_detect_ff_impl.cc:187:1: error:
> > expected ‘{’ before ‘}’ token
> > } /* namespace howto */
> > ^
> > make[2]: ***
> > [lib/CMakeFiles/gnuradio-howto.dir/howto_detect_ff_impl.cc.o]
> Error 1
> > make[1]: *** [lib/CMakeFiles/gnuradio-howto.dir/all] Error 2
> > make: *** [all] Error 2
> >
> > Could you please help me out with all individual errors.
> Attachment of
> > al the 3 files are provided.
> > Thanks in advance,
> > Abhishek.
>
>
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