Re: [Discuss-gnuradio] Error: ‘pdu’ has not been declared

[Marcus Müller]

Really quickly, I have to go:

gr::block::pdu is the C++ namespace tht the pdu blocks reside in; you'll
have to reproduce that namespace declaration in your files; compare the
`namespace ... {` declarations in the main tree.

By the way, in my opinion experimenting with the existing blocks' source
code to understand them is an excellent, scientific approach! To be
honest, I would have been lazy and just added the addition (optional)
output ports directly to the main GNU Radio source tree blocks; since
git makes handling multiple branches, e.g. master and my_experiments
extremely easy, you could always switch back to a known working source
code :)

Best regards,
Marcus

On 04.05.2016 10:26, Henning Bredenberg wrote:
> Hi list,
>
>
> I created an OOT module "work" and tried to copy the functions of
> blocks from the standard library with additional test-outputs for a
> better understanding. The block "pdu_to_tagged_stream" is copied in an
> own block called "tagged". Via following commands in the build
> direction I should be able to use this block in GRC.
>
> cmake ../
> make
> sudo make install
> sudo ldconfig
>
> Following error occurs when i run make:
>
>
> ~/gnuradio/gr-work/build$ make
> Scanning dependencies of target gnuradio-work
> [  5%] Building CXX object
> lib/CMakeFiles/gnuradio-work.dir/tagged_impl.cc.o
> In file included from
> /home/user1/gnuradio/gr-work/lib/tagged_impl.h:24:0,
>                  from /home/user1/gnuradio/gr-work/lib/tagged_impl.cc:25:
> /home/user1/gnuradio/gr-work/include/work/tagged.h:50:24: error: ‘pdu’
> has not been declared
>        static sptr make(pdu::vector_type type, const std::string&
> tsb_tag_key);
>
> [...more errors including "‘pdu’ has not been declared"...]
>
> make[2]: *** [lib/CMakeFiles/gnuradio-work.dir/tagged_impl.cc.o] Error 1
> make[1]: *** [lib/CMakeFiles/gnuradio-work.dir/all] Error 2
> make: *** [all] Error 2
>
>
> I tried several things but since I'm not a skilled programmer I can't
> figure out what to change.
> Inserting "#include <gnuradio/blocks/pdu.h>" in the tagged.h file
> doesn't fix it.
> Anyone who can help me with this? If needed, i can add more
> information about the code.
>
>
> Best regards,
> Henning
>
>
>
>
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