Hello Ron,
thank you very much.
I have walked right into the trap a second time :-( I should attach a
Post-It to my monitor screen to remind me that I might need to adapt the
CMakeLists.txt files when I change something...
Long story short, it works now :-)
Regards,
Ralf
Am 29.01.2022 um 23:54 schrieb Ron Economos:
Ralf,
Yes, I was thinking about how I had done things in my 3.8 OOT's where
I had used this syntax instead:
fft::fft_complex *ofdm_fft;
and
ofdm_fft = new fft::fft_complex(ofdm_fft_size, false, 1);
The other thing to check is the linking. Like so.
https://github.com/drmpeg/gr-paint/blob/master/CMakeLists.txt#L78
and
https://github.com/drmpeg/gr-paint/blob/master/lib/CMakeLists.txt#L25
Ron
On 1/29/22 14:24, Ralf Gorholt wrote:
Hello Ron,
d_fft_calculator is (and was in the 3.8 version) an object and not a
pointer. That's why I already use the . and not the ->
Regards,
Ralf
Am 29.01.2022 um 21:35 schrieb Ron Economos:
Ralf,
I'm not sure if you've done this already, but when you use
d_fft_calculator, you need to change from -> to . to access it.
Ron
On 1/29/22 12:24, Ralf Gorholt wrote:
Hello all,
I am currently trying to migrate an OOT module that uses an FFT object
internally from GNU Radio version 3.8 to 3.9.
In my .h file I have got this:
//old: gr::fft::fft_complex d_fft_calculator;
gr::fft::fft_complex_fwd d_fft_calculator;
and in the constructor member initializer list this:
//old: d_fft_calculator(gr::fft::fft_complex(pow(2.0, 10 +
mode),
true, 1)),
d_fft_calculator(pow(2.0, 10 + mode), 1),
The module compiles without a problem but when I start the flowgraph I
get the message "ImportError:
/usr/local/lib/libgnuradio-dl5eu.so.1.0.0:
undefined symbol: _ZN2gr3fft3fftISt7complexIfELb1EED1Ev". It looks
to me
that somewhere "fft_complex" is still called behind the scenes but I
can't see where.
Can anyone tell me how I need to correct this?
FYI, I have recreated the module and the blocks with gr_modtool and
then
copied the relevant code from the old to the new version.
Thank you very much and kind regards,
Ralf
