Re: [Discuss-gnuradio] Some fairy C++ error in gr-filter

[Tom Rondeau]

On Mon, Feb 10, 2014 at 5:13 AM, Gisle Vanem <address@hidden> wrote:
> "Tom Rondeau" <address@hidden> wrote:
>
>> OS? GNU Radio version?
>>
>
> On Win-XP SP3 + GR version stright from the git-repo (in case it
> matters, but I doubt it). The C++ errors are on generated code
> and AFAICS, the OS is not a variable in this case. But maybe the
> '__declspec(dllexport)' could be an issue.
>
> Thanks for answering.
>
> --gv

No, the error you are showing doesn't really make any sense. But you
also gave us a set of g++ arguments that are not what we would
normally use in GNU Radio. Are you trying to compile this by hand and
not use the cmake/make build system?

Tom



>> On Fri, Feb 7, 2014 at 10:50 AM, Gisle Vanem <address@hidden> wrote:
>>>
>>> Hi list. My 1st post here.
>>> I have a big problem with CMake and some of the generated
>>> files under gr-filter/lib. E.g. here is a snippet from it:
>>>
>>> #include "fir_filter_ccc.h"
>>> #include <gnuradio/io_signature.h>
>>> #include <volk/volk.h>
>>>
>>> namespace gr {
>>>  namespace filter {
>>>       fir_filter_ccc::sptr
>>>    fir_filter_ccc::make(int decimation, const std::vector<gr_complex>
>>> &taps)
>>>    {
>>>      return gnuradio::get_initial_sptr(new fir_filter_ccc
>>>     (decimation, taps));      ///  <<< line 40
>>>    }
>>>
>>> At line 40 my g++ 4.7.2 starts yelling w/o me understanding what it says.
>>> Here is the 1st error (edited):
>>>
>>> fir_filter_ccc_impl.cc: In static member function 'static
>>> gr::filter::fir_filter_ccc::
>>>  sptr gr::filter::fir_filter_ccc::make(int, const
>>> std::vector<std::complex<float> >&)':
>>> fir_filter_ccc_impl.cc:40:23: error: cannot allocate an object of
>>> abstract
>>> type
>>>  'gr::filter::fir_filter_ccc'
>>>
>>> What's this? Is this because 'FILTER_API' is an dllexport? Or is my
>>> fir_filter_ccc_impl.cc generated incorrectly? What is that file and
>>> fir_filter_ccc.h supposed to look like?
>>>
>>> Some info for you: 'g++ -fconserve-space -c -DDEBUG -g -O1 -Wall' ..etc.
>>>
>>> Thanks in advance.
>>>
>>> --gv
>
>