23#ifndef INCLUDED_GR_NULL_SOURCE_H
24#define INCLUDED_GR_NULL_SOURCE_H
40 typedef boost::shared_ptr<null_source>
sptr;
A source of zeros used mainly for testing.
Definition: null_source.h:37
boost::shared_ptr< null_source > sptr
Definition: null_source.h:40
static sptr make(size_t sizeof_stream_item)
synchronous 1:1 input to output with history
Definition: sync_block.h:38
#define BLOCKS_API
Definition: gr-blocks/include/gnuradio/blocks/api.h:30
Include this header to use the message passing features.
Definition: basic_block.h:45