Re: Problem using volk_32fc_s32fc_multiply_32fc function with vector params

[Johannes Demel]

Hi George,

All VOLK functions require pointers as you already noticed. You can 
access the underlying data structure of a vector via its `.data()` 
method as Brian noted.
Moreover, you can use `volk::vector` if you want your vectors to be 
aligned. `volk::vector` is almost a `std::vector` but uses its own 
allocator that ensures alignment.
`volk::vector` is available in `volk/volk_alloc.hh`. Since it is a C++ 
only feature.

Cheers
Johannes

On 03.05.22 04:28, George Edwards wrote:
> Hello GNURadio Community,
>
> I am having a problem using the above function with vector parameters. 
> If I use an array say:
> gr_complex my_val[240];
> volk_32fc_s32fc_multiply_32fc(my_val, my_val, scale, 240);
>
> It works! But if I change my_val to be a vector like below, it fails:
> std::vector <gr_complex> my_val(240);
>
> The reason I need to use a vector is that with arrays, the size must be 
> known at compile time, while with vectors one can build it at runtime.
>
> I would appreciate any suggestions.
> Thank you!
>
> George