It++ library in gnu radio

GNU Radio
1

Hi,
I have to use the IT++ library (it’s a C++ library) to write a new GNU
RADIO block. But I can’t do this: I import the library as usual in
“modulename_nameblock.cc” by

#include <itpp/base.h>

then I create a vector in the method work

vec a;
a = (“1, 2, 3, 4”);

but I get the error

error: ‘vec’ was not declared in this scope

after type “make” !

Usually if a want to compile a C++ file using the IT++ library I have to
type:

g++ -o file_name file_name.cpp -litpp

How can I do the same thing into GNURADIO ?
Is there anyone that can help me ? Please !!!

I use GNURADIO 3.3.0 end Ubuntu 9.10.

2

did you check the namespace usage ?

You have to specify somewhere that is an itpp::vec.

Oscar

3

Oscar T. wrote in post #963564:

did you check the namespace usage ?

You have to specify somewhere that is an itpp::vec.

Oscar

Hi Oscar,

I’ve tried to specify it by means

using namespace itpp;
using itpp::vec;

but I get the error:

gr-howto-write-a-block-3.3.0/lib/.libs/libgnuradio-howto.so: undefined
reference to `itpp::Vec::operator=(char const*)

gr-howto-write-a-block-3.3.0/lib/.libs/libgnuradio-howto.so: undefined
reference to `itpp::Vec::free()’

Simply I’m trying to create a vector in the block howto_square2_ff, just
to verify if it will be still compiled right after including it++
libraty.
I think I’ve to specify somewhere what library to use. But I don’t know
where.

Riccardo