Re: [Discuss-gnuradio] Understanding c++ code

[Marcus Müller]

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Hi Sara,

C++ is a compiled language; you can not execute a source code file.
You have to recompile the file by rebuilding GNU Radio.
additive_scrambler_bb_impl.cc contains the implementation of the
additive_scrambler_bb block, it is not itself executable.
You need to have a flowgraph containing that block to test your
modified version.

I think you should start with a basic C++ tutorial before you try to
understand and modify GNU Radio's C++ codebase -- these are very basic
concepts you are missing.

Greetings,
Marcus

On 12.04.2014 16:18, Sara Chérif wrote:
> I installed GNU RADIO from this link 
> http://blogs.bu.edu/mhirsch/2012/07/installing-gnu-radio-in-ubuntu-12-04-x64/comment-page-1/
>
> 
I want to test some blocks & see their output to understand them more and
> more. for example I opened additive_scrambler_bb  c++ codes in
> terminal to understand but I want to see how some parameters change
> in code when running it . how to output these parameters in
> terminal ? Can I write in code "cout" like any c++code? And do I
> have to build gnuradio again even if I will erase all my 
> modifications in code (I don't want these modifications permanently
> I want only to output all parameters to understand the block)
> 
> I did the following: editing it using  vim
> ./additive_scrambler_bb_impl.cc running it to see the output on
> terminal using ./additive_scrambler_bb_impl.cc
> 
> but when I ran it in terminal I got this message: bash:
> ./additive_scrambler_bb_impl.cc: Permission denied
> 
> Thanks
> 
> 
> 
> _______________________________________________ Discuss-gnuradio
> mailing list address@hidden 
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> 
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