Robotics Systems Commons

When running the following program

#include <stdio.h>
#include <rsc/logging/Logger.h>

using namespace std;

int main() {
    rsc::logging::LoggerPtr logger = rsc::logging::Logger::getLogger("testlogger");

    stringstream s;
    for (uint i = 0; i < 5; ++i) {
        s << i << " ";
    }
    cout << s.str() << endl;
    RSCERROR(logger, "rsc::logging: " << s.str());

    return EXIT_SUCCESS;
}

I get the following output:

0 1 2 3 4 
1455195279558 testlogger [ERROR]: rsc::logging: 

But I would expect, that the rsc logger also outputs the values from the stringstream.

What is wrong here?