GNU Radio Companion Error for Custom OOT cpp block

[Michael Bassi]

Hi all,

I have created my first custom OOT block in c++

It works when my block takes no inputs.

However, after changing my block signature to allow one input variable (called samp_rate), I am getting the following error in GRC:

self.custom_blocks_readfilesource_cpp_0 = custom_blocks.readfilesource_cpp(samp_rate)

TypeError: make() takes no arguments (1 given)

As you can see, my block is called "readfilesource_cpp"

I have updated the make function in readfilesoure_cpp.h like so:

static sptr make(float input_sample_rate = 1.0);

I have updated the make function and constructor in my "readfilesource_cpp_impl.cpp" file like so:

readfilesource_cpp::sptr readfilesource_cpp::make(float input_sample_rate) {

return gnuradio::get_initial_sptr (new readfilesource_cpp_impl(input_sample_rate));

}

/* The private constructor */

readfilesource_cpp_impl::readfilesource_cpp_impl(float input_sample_rate)

: gr::sync_block("readfilesource_cpp",gr::io_signature::make(0, 0, 0),gr::io_signature::make(1, 1, sizeof(float))),

sample_rate(input_sample_rate)

{}

I downloaded the gnu radio source code from github and compared the char_to_float block to my own. I can't see why mine isn't working.

Cheers,

Mike

p.s.

Why are there two header files for a block? why is  _impl automatically added to my files by gr_modtool?