Re: [Discuss-gnuradio] It must be defined inside the context of a function !

[Martin Braun]

On Thu, Jan 16, 2014 at 10:13 AM, Activecat <address@hidden> wrote:

Dear Sir,

Is this a good alternative? 
   gr_make_io_signature2 (2, 2, sizeof(float), sizeof(double))
   http://stackoverflow.com/questions/14347626/how-to-define-a-block-with-2-inputs

Dear Activecat,

yes, you must specify the input size as you have done, so gr_make_io_signature2 (2, 2, sizeof(float), sizeof(double)) is a valid signature.

Is this considered a correct answer?
  http://lists.gnu.org/archive/html/discuss-gnuradio/2013-01/msg00193.html

It would work, but for reasons of readability I suggest you use the other form.
 

Then: Working in namespace gr::howto is really deprecated. To get a

working, correctly named module infrastructure fitting your
installation of GR (which hopefully is either v3.6.5 or 3.7.X), please
use gr_modtool.

modtool does use these namespaces! If you generate a module called 'howto', it will put blocks in the gr::howto namespace.

MB