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C/C++ Source or Header  |  1979-01-10  |  289 b   |  16 lines
  1. #include    <stdio.h>
  2.  
  3. setbuf(iop, buf)
  4. register struct _iobuf *iop;
  5. char *buf;
  6. {
  7.     if (iop->_base != NULL && iop->_flag&_IOMYBUF)
  8.         free(iop->_base);
  9.     iop->_flag &= ~(_IOMYBUF|_IONBF);
  10.     if ((iop->_base = buf) == NULL)
  11.         iop->_flag |= _IONBF;
  12.     else
  13.         iop->_ptr = iop->_base;
  14.     iop->_cnt = 0;
  15. }
  16.