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Text File  |  1986-02-01  |  338 b   |  21 lines
  1. #
  2. sptotab (pcurcol, firstab, tabinc)
  3. int     pcurcol,
  4.         firstab,
  5.         tabinc;
  6. {
  7.     register short
  8.                     curcol,
  9.                     diff;
  10.  
  11.     curcol = pcurcol;
  12.     firstab++;
  13.  
  14.     if (curcol <= firstab)
  15.     return (firstab - curcol);
  16.     else
  17.     return ((diff = (--curcol % tabinc)) == 0
  18.         ? 0
  19.         : (tabinc - diff));
  20. }
  21.