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Annotation of GNUtools/libg++/libio/ioignore.c, revision 1.1.1.1

1.1       root        1: /* 
                      2: Copyright (C) 1993 Free Software Foundation
                      3: 
                      4: This file is part of the GNU IO Library.  This library is free
                      5: software; you can redistribute it and/or modify it under the
                      6: terms of the GNU General Public License as published by the
                      7: Free Software Foundation; either version 2, or (at your option)
                      8: any later version.
                      9: 
                     10: This library is distributed in the hope that it will be useful,
                     11: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     13: GNU General Public License for more details.
                     14: 
                     15: You should have received a copy of the GNU General Public License
                     16: along with GNU CC; see the file COPYING.  If not, write to
                     17: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
                     18: 
                     19: As a special exception, if you link this library with files
                     20: compiled with a GNU compiler to produce an executable, this does not cause
                     21: the resulting executable to be covered by the GNU General Public License.
                     22: This exception does not however invalidate any other reasons why
                     23: the executable file might be covered by the GNU General Public License. */
                     24: 
                     25: #include "libioP.h"
                     26: 
                     27: int
                     28: _IO_ignore(fp, n)
                     29:      register _IO_FILE *fp;
                     30:      _IO_size_t n;
                     31: {
                     32:   register _IO_size_t more = n;
                     33:   for (;;)
                     34:     {
                     35:       _IO_size_t count = fp->_IO_read_end - fp->_IO_read_ptr;
                     36:       if (count > 0)
                     37:        {
                     38:          if (count > more)
                     39:            count = more;
                     40:          fp->_IO_read_ptr += count;
                     41:          more -= count;
                     42:        }
                     43:       if (more == 0 || __underflow(fp) == EOF)
                     44:        break;
                     45:     }
                     46:   return n - more;
                     47: }

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