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C/C++ Source or Header  |  1986-11-30  |  244 b   |  16 lines
  1. extern char *brkend;
  2. sbrk (incr) char *incr; {
  3.     char *stktop;
  4.  
  5.     stktop = Xstktop() - 200;
  6.  
  7.     /* do we have enough space? */
  8.     if (brkend + incr < stktop) {
  9.         stktop = brkend;
  10.         brkend = brkend + incr;
  11.         return (stktop);
  12.     }
  13.     else
  14.         return (-1);
  15. }
  16.