Re: [Discuss-gnuradio] Segmentation fault : Try to make dual channel building blocks

[Eric Blossom]

On Fri, Mar 06, 2009 at 11:03:28AM -0800, Yong J. Chang wrote:
> 
> Hi all,
> 
> Now I'm building some signaling blocks having dual output streams.
> But if I try to make dual output streams which have different data type from
> input stream, 'Segmentation fault' error is occurred. How can I make dual
> outputs which have different data type from input stream?
> 
> Thanks in advance.
> Yong

Have you read 

  http://www.gnu.org/software/gnuradio/doc/howto-write-a-block.html ?

There are always separate is_signatures for input and output
directions.  Look at gr_io_signature.h for additional information.
gdb will tell you where you are segfaulting.

Eric