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/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <stdio.h>
#include <libc/file.h>
int
{
if (c == EOF
|| (f->_flag & (_IOREAD|_IORW)) == 0
|| f->_ptr == NULL
|| f->_base == NULL)
return EOF;
if (f->_ptr == f->_base)
{
if (f->_cnt == 0)
f->_ptr++;
else
return EOF;
}
f->_cnt++;
*--f->_ptr = c;
return c;
}