Re: [boost] Re: recommend logging library?

From: Darren Cook (darren_at_[hidden])
Date: 2004-03-18 18:41:50

> I think it's the wrong approach. In our company we have implemented 
> logging through macros which has one very important property: When I write
> 
> LOG_DEBUG( whatever() );

I have a macro like this:

     std::ostream *logfile=&std::cout;	//Go to screen if not set

     #define LOG(expr) \
     *logfile<<"\n"<<BOOST_CURRENT_FUNCTION<<":"<<__LINE__<<":\n"<<expr

     // To disable logging:
     //#define LOG(expr) (void(0))

I can then use like this:
     LOG("e="<<e<<", data:"<<*p);

The problem comes when I have a function that takes an ostream; then I have 
to expose the internals:

     LOG("Here is data:");LOG(obj->debug_info(*logfile,true,false));

Is there a better way?

Darren