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[Discuss-gnuradio] Getting error: prototype for does not match any in cl


From: kunal sankhe
Subject: [Discuss-gnuradio] Getting error: prototype for does not match any in class
Date: Fri, 6 Jun 2014 21:30:32 +0530

Hello,

I am writing my own signal processing block to calculate |x1|^2+|x2|^2
where x1 and x2 are complex. But I am getting below error

[  5%] Building CXX object lib/CMakeFiles/gnuradio-testmodule.dir/power2_cf_impl.cc.o
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.cc:32:5: error: prototype for ‘gr::testmodule::power2_cf::sptr gr::testmodule::power2_cf::make(size_t)’ does not match any in class ‘gr::testmodule::power2_cf’
/home/cogwsn/GRProject/gr-testmodule/include/testmodule/power2_cf.h:49:19: error: candidate is: static gr::testmodule::power2_cf::sptr gr::testmodule::power2_cf::make()
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.cc:41:5: error: prototype for ‘gr::testmodule::power2_cf_impl::power2_cf_impl(size_t)’ does not match any in class ‘gr::testmodule::power2_cf_impl’
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.h:29:11: error: candidates are: gr::testmodule::power2_cf_impl::power2_cf_impl(const gr::testmodule::power2_cf_impl&)
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.h:35:7: error:                 gr::testmodule::power2_cf_impl::power2_cf_impl()
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.cc: In member function ‘virtual int gr::testmodule::power2_cf_impl::work(int, gr_vector_const_void_star&, gr_vector_void_star&)’:
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.cc:67:34: error: ‘d_vlen’ was not declared in this scope
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.cc:74:46: error: cannot convert ‘float’ to ‘float*’ in argument passing
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.cc:75:46: error: cannot convert ‘float’ to ‘float*’ in argument passing
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.cc:76:44: error: ‘volk_32fc_x2_multiply_32fc’ was not declared in this scope
/home/cogwsn/GRProject/gr-testmodule/lib/power2_cf_impl.cc:78:39: error: ‘volk_32f_x2_add_32f’ was not declared in this scope
make[2]: *** [lib/CMakeFiles/gnuradio-testmodule.dir/power2_cf_impl.cc.o] Error 1
make[1]: *** [lib/CMakeFiles/gnuradio-testmodule.dir/all] Error 2


Please let me where I am doing mistakes. Below is the code.


#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <gr_io_signature.h>
#include "power2_cf_impl.h"
#include <volk/volk.h>
namespace gr {
  namespace testmodule {

    power2_cf::sptr power2_cf::make(size_t vlen)
    {
      return gnuradio::get_initial_sptr(new power2_cf_impl(size_t vlen));
    }

    /*
     * The private constructor
     */
    power2_cf_impl::power2_cf_impl(size_t vlen)
      : gr_sync_block("power2_cf",
              gr_make_io_signature(1, 2, sizeof(gr_complex)*vlen),
              gr_make_io_signature(1, 1, sizeof(float)*vlen)),
   d_vlen(vlen)
    {
      const int alignment_multiple =
    volk_get_alignment() / sizeof(float);
      set_alignment(std::max(1,alignment_multiple));
    }

    /*
     * Our virtual destructor.
     */
    power2_cf_impl::~power2_cf_impl()
    {
    }

    int
    power2_cf_impl::work(int noutput_items,
              gr_vector_const_void_star &input_items,
              gr_vector_void_star &output_items)
    {
       const gr_complex *in1 = (const gr_complex *) input_items[0];
       const gr_complex *in2 = (const gr_complex *) input_items[1];
       float *out = (float *) output_items[0];
       int noi = noutput_items * d_vlen;
        // Do <+signal processing+>

    float x1=0;
    float x2=0;
    float x3=0;
    float x4=0;
       volk_32fc_magnitude_32f_u(x1, in1, noi);
       volk_32fc_magnitude_32f_u(x2, in2, noi);
    volk_32fc_x2_multiply_32fc(x3, x1, x1, noi);
    volk_32fc_x2_multiply_32fc(x4, x2, x2, noi);
     volk_32f_x2_add_32f(out, x3, x4, noi);
        // Tell runtime system how many output items we produced.
        return noutput_items;
    }

  } /* namespace testmodule */
} /* namespace gr */


Regards,
Kunal

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