#define DEBUG... (using printf for debugging)

[Wayne Hathaway]

travis at cs.columbia.edu (Travis Lee Winfrey) suggests:

  # ifdef DEBUG
  #       define dprintf(dlevel,printfargs)  if (dlevel <= DEBUG ) \
                                                  printf printfargs  
  # else /* DEBUG */
  #       define dprintf(a,b)
  # endif /* DEBUG */

A good idea, and one which I also use (slightly more generalized, of
course; I just can't resist getting too damn fancy for my own good!).


I do have one nit, though:  I would suggest defining "dprintf" as:

    define dprintf(dlevel,printfargs)  if (dlevel > DEBUG) ; \
                                       else printf printfargs

Why?  Consider the following:

        if ( <some_strange_situation> )
            dprintf(1, ("oh no! just had some strange situation\n"));
        else
            <regular_processing>;


You see, I just HATE programs that stop working when you turn on the
DEBUG flag!  :-)

wayne

  Wayne Hathaway            
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