A macro that gives an output stream into which it has written the name of the debug variable.

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A macro that gives an output stream into which it has written the name of the debug variable. Example:

    DBG(dbg) << "Help! The zombie grepped me with a pipe!\n";
 * 

Note that the name printed is not the name of the C++ variable but the name used in DBGVAR to define it, through a little magic.

Using this macro gives us the option, at a later date, to redirect different streams to different files. It's also shorter than

 * 	if(dbg) cout <<
 * 

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