Hi Vipin - You're doubly dereferencing IdealFMCW. I think your code
should read:{{{
*Tx1 = *Tx1 + (IdealFMCW[tapIdx]) * (*hTx1);
}}}
because the [tapIdx] already dereferences the gr_complex* (IdealFMCW) to
be just gr_complex. The error provided by your compiler isn't very
helpful. Clang's error reads:{{{
error: indirection requires pointer operand ('gr_complex' (aka
'complex<float>') invalid)}}}
which at least gives a clue about the extra dereference but it's great
either. Hope this helps! - MLD
On Fri, Jun 9, 2017, at 01:57 AM, Vipin Sharma wrote:
> I have a custom block with some input streams being declared as
> gr_complex type as shown here:>
> *Control_impl::general_work (int noutput_items,*
> * gr_vector_int &ninput_items,*
> * gr_vector_const_void_star &input_items,*
> * gr_vector_void_star &output_items)*
> * {*
> * const gr_complex *hTx1 = (const gr_complex *) input_items[0];*> *
> const gr_complex *hTx2 = (const gr_complex *) input_items[1];*> * const
> gr_complex *IdealFMCW = (const gr_complex *)
> input_items[2];*>
> Later on I use IdealFMCW as follows:
>
> * for(tapIdx=0; tapIdx<TapSize; tapIdx++) {*
> * *Tx1 = *Tx1 + *(IdealFMCW[tapIdx]) * (*hTx1); *
>
> When I do make, I get compile errors:
>
> *error: no match for ‘operator*’ (operand type is ‘const gr_complex
> {aka const std::complex<float>}’)*> * *Tx1 = *Tx1 +
> *(IdealFMCW[tapIdx]) * (*hTx1); *
>
> I am simply trying to de-reference the pointer (defined by
> IdealFMCW[tapIdx]) and use the value. What am I not doing right?
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