21 lines
		
	
	
	
		
			400 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
	
		
			400 B
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
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|  * See the copyright notice in the ACK home directory, in the file "Copyright".
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|  *
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|  * Author: Ceriel J.H. Jacobs
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|  */
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| 
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| /* $Id$ */
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| 
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| double
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| floor(x)
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| 	double x;
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| {
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| 	extern double modf();
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| 	double val;
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| 
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| 	return modf(x, &val) < 0 ? val - 1.0 : val ;
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| 	/*	this also works if modf always returns a positive
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| 		fractional part
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| 	*/
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| }
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