Re: [Discuss-gnuradio] Automated Simulation Quirk

[Richard Bell]

Thanks, this helped me find the error.

This flush also has the nice effect of making the outputs look realtime, instead of coming out in blocks. I like that.

Rich

On Tue, Oct 27, 2015 at 2:19 AM, Marcus Müller <address@hidden> wrote:

you can flush an outputstream using std::flush, e.g

std::out << "This is a message that I hope doesn't get delayed" <<
std::flush;

Best regards,
Marcus

On 10/27/2015 06:18 AM, Richard Bell wrote:
> Sure how would I do that? I'm not familiar with buffering related to std::cout.
>
> Rich
>
> Sent from my iPad
>
>> On Oct 26, 2015, at 10:33 AM, Martin Braun <address@hidden> wrote:
>>
>> Rich,
>>
>> can you confirm that the output is actually occurring when you think it
>> is? I.e., there's no buffering going on and older data is displayed?
>>
>> M
>>
>>> On 26.10.2015 10:20, Richard Bell wrote:
>>> Hi all,
>>>
>>> I've got a flowgraph I made running from a python script in a for loop.
>>> Each run through the loop different parameters are set for various
>>> settings of the radio.
>>>
>>> The quirk I'm seeing, is that some std::cout statements generated from
>>> flowgraph blocks are outputting 0's when they are not 0. Does anyone
>>> know why this might be?
>>>
>>> For example, the variable num_bit_errors is what the flowgraph ends a
>>> simulation on. If num_bit_errors > 100, I return WORK_DONE, which moves
>>> the script onto the next loop iteration. This works fine, there is no
>>> deadlock in the system. However, in the same area of code, I also do
>>> std::cout << num_bit_errors so that I have a sense of how far along the
>>> simulation is. These cout statements almost always return 0's, even
>>> right before the flowgraph makes it past the if num_bit_errors > 100
>>> check. Another words, to make it through that if statements and complete
>>> the flowgraph run, num_bit_errors must be non-zero. However, std::cout
>>> reports that num_bit_error is 0.
>>>
>>> Not sure what's going on.
>>>
>>> Rich
>>>
>>>
>>> _______________________________________________
>>> Discuss-gnuradio mailing list
>>> address@hidden
>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> address@hidden
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio


_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio