35 lines
		
	
	
	
		
			781 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			35 lines
		
	
	
	
		
			781 B
		
	
	
	
		
			C
		
	
	
	
	
	
| /* $Header$ */
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| /*
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|  * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
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|  *
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|  *          This product is part of the Amsterdam Compiler Kit.
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|  *
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|  * Permission to use, sell, duplicate or disclose this software must be
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|  * obtained in writing. Requests for such permissions may be sent to
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|  *
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|  *      Dr. Andrew S. Tanenbaum
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|  *      Wiskundig Seminarium
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|  *      Vrije Universiteit
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|  *      Postbox 7161
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|  *      1007 MC Amsterdam
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|  *      The Netherlands
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|  *
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|  */
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| 
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| /* Author: J.W. Stevenson */
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| 
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| #include	<pc_file.h>
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| 
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| extern		_flush();
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| 
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| /* procedure buff(var f:file of ?); */
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| 
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| buff(f) struct file *f; {
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| 	int sz;
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| 
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| 	if ((f->flags & (0377|WRBIT)) != (MAGIC|WRBIT))
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| 		return;
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| 	_flush(f);
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| 	sz = f->size;
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| 	f->count = f->buflen = (sz>PC_BUFLEN ? sz : PC_BUFLEN-PC_BUFLEN%sz);
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| }
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