Re: [Boost-users] using embedded stringstream on a single line.

Avi Bahra wrote:

Is there anything in boost/design pattern that can help with following:

std::stringstream ss; ss << "SUBMIT: Task(" << absPath << ") "; log( Log::DBG, ss );

The code I am working on does this all over the place, what I would like is :

log( Log::DBG, "SUBMIT: Task(" << absPath << ") " );

Something simple would be to use lexical_cast (assuming your log() function has an overload accepting strings): log(Log::DBG, "Submit: Task(" + boost::lexical_caststd::string(absPath) + ")"); Alternatively, to get a nicer interface for the caller, the log() function could be templatized and take care of the streaming. Something like: template void log(Log::Level l, const Arg1T& arg1 = None(), const Arg2T& arg2 = None(), const Arg3T& arg3 = None()) { std::stringstream ss; ss << arg1 << arg2 << arg3; log(l, ss); } (Assuming a do-nothing operator<<(ostream&, const None&)) used as: log(Log::DBG, "Submit: Task(", absPath, ")");