[Discuss-gnuradio] Output not showing in GRC

[Sammour]

Hello guys,

As my first gnuradio block, I have built a block to multiply two complex
numbers using MATLAB library. I compiled my block and wrote a python
programme to test it and everything went very nicely. I used this c++
statement in the general_work method to see the output of the block:
            std::cout << out[i]<< std::endl;
and indeed I can see the complex product for my inputs. However, when I
install my block in GRC, I connect the output to a file sink that stores
nothing! I also tried to plot the magnitude of the complex output and
nothing shows. The surprising part is that the output values of the above
c++ statement are printed in the output area in GRC and this means that my
c++ code is actually invoked.

I wonder if this has to do with library linking or not. Any suggestions??

Thanks a lot!

Sam
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