On Mon, Nov 5, 2012 at 10:42 AM, Jose Torres Diaz
<address@hidden> wrote:
Hi,
My question is related to the work function using block() as provided in GRExtras. I have a block that input a gr_complex value and output a gr_complex value. I'm trying to cast the input and output, in order to use them in my work function, what I have is:
int work(
const InputItems &input_items,
const OutputItems &output_items
){
std::complex<float> * in = input_items[0].cast<std::complex<float> *>();
std::complex<float> * out = output_items[0].cast<std::complex<float> *>();
//Processing here
} //End of work function
I can cast the output without problem, but I cannot do it for the input. I got the following error:
/home/project/grextras/include/gnuradio/block.h: In member function ‘T gnuradio::Buffer<PtrType>::cast() const [with T = std::complex<float>*, PtrType = const void*]’:
/home/project/grextras/lib/s_asrp_st2up_insertcp.cc:76:77: instantiated from here
/home/project/grextras/include/gnuradio/block.h:43:47: error: reinterpret_cast from type ‘const void*’ to type ‘std::complex<float>*’ casts away qualifiers
So, I checked into the block.h I have the following:
typedef std::vector<Buffer<const void *> > InputItems;
typedef std::vector<Buffer<void *> > OutputItems;
Does it mean that I cannot cast my input_items in my work function?
If the answer is no, how can I use the input_items in my work function?, because I have to receive a stream of values.
Thanks for your comments,
Regards,
Jose