From Robert Schmidt via the users' list:

Hi all, 

I have problems using the ConfigStore. I guess it is a bug, but maybe I 
am using it wrong. I am on ns3-dev. 

The problem occurs when trying to configure my model via 
ConfigStore::ConfigureAttributes () after having called 
ConfigStore::ConfigureDefaults () as explained here [1]. I attached a 
sample script that illustrates this, config-test.cc (it is based on 
first.cc from the tutorial, I did not manage to produce an easier one). 
When running the script without setting any parameters, the server pings 
three times back (enable the UdpEchoServerApplication logging component). 

Now, via a config in raw mode I set the StartTime of the UdpEchoClient 
to two seconds. I'd expect that the server starts to respond from 2s 
onwards. This is not the case. 

By setting the RawTextConfig logging component one can see that upon 
calling RawTextConfigLoad::Attributes (), nothing happens. Indeed the 
reset of the file error flags is not called like in 
RawTextConfigLoad::Default (). By adding m_is->clear (); to the begging 
of RawTextConfigLoad::Attributes () it parses the file correctly and the 
UdpEchoClient behaves correctly. 

Is this a real bug or am I missing something? I attached a patch adding 
this one line. 

Robert 

[1] https://www.nsnam.org/wiki/HOWTO_use_the_ConfigStore