std::stringstream stream;
stream << std::fixed << std::setprecision(trace_precision);
XBT_DEBUG("%s: event_type=%u, timestamp=%.*f", __func__, static_cast<unsigned>(event_type), trace_precision, 0.);
std::stringstream stream;
stream << std::fixed << std::setprecision(trace_precision);
XBT_DEBUG("%s: event_type=%u, timestamp=%.*f", __func__, static_cast<unsigned>(event_type), trace_precision, 0.);