Re: [Discuss-gnuradio] constructor of block is not private

[Marcus Müller]

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Hi Activecat,

the _impl classes are usually not instantiated by themselves; in fact,
their symbols are usually not exported and not wrapped by swig.
Instead, an instance of them is usually generated using the
superclass' ::make method. So there is need for at least that make
method being able to access the constructor.

Hope that cleared things up a little!

Greetings,
Marcus

On 23.01.2014 07:33, Activecat wrote:
> Dear Sir,
> 
> From the documentation, the constructor of user-defined block is
> often private. But how come it is defined as public, refer below
> code. This is a typical code generated by gr_modtool:
> 
> Filename: byte_source_impl.h
> 
> /* -*- c++ -*- */#ifndef INCLUDED_HOWTO_BYTE_SOURCE_IMPL_H#define 
> INCLUDED_HOWTO_BYTE_SOURCE_IMPL_H #include <howto/byte_source.h> 
> namespace gr { namespace howto {
> 
> class byte_source_impl : public byte_source { private: unsigned int
> counter;
> 
> 
> public: byte_source_impl();   // constructor is public ?? 
> ~byte_source_impl();
> 
> void forecast (int noutput_items, gr_vector_int 
> &ninput_items_required);
> 
> int general_work(int noutput_items, gr_vector_int &ninput_items, 
> gr_vector_const_void_star &input_items, gr_vector_void_star
> &output_items); };
> 
> } // namespace howto } // namespace gr #endif /*
> INCLUDED_HOWTO_BYTE_SOURCE_IMPL_H */
> 
> 
> 
> Please advise, thanks.
> 
> Regards. address@hidden
> 
> 
> 
> _______________________________________________ Discuss-gnuradio
> mailing list address@hidden 
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> 
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