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			40 lines
		
	
	
		
			865 B
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			40 lines
		
	
	
		
			865 B
		
	
	
	
		
			C
		
	
	
	
| 
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| /* @(#)w_hypot.c 1.3 95/01/18 */
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| /*
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|  * ====================================================
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|  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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|  *
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|  * Developed at SunSoft, a Sun Microsystems, Inc. business.
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|  * Permission to use, copy, modify, and distribute this
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|  * software is freely granted, provided that this notice 
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|  * is preserved.
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|  * ====================================================
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|  */
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| 
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| /*
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|  * wrapper hypot(x,y)
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|  */
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| 
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| #include "fdlibm.h"
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| 
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| 
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| #ifdef __STDC__
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| 	double hypot(double x, double y)/* wrapper hypot */
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| #else
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| 	double hypot(x,y)		/* wrapper hypot */
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| 	double x,y;
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| #endif
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| {
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| #ifdef _IEEE_LIBM
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| 	return __ieee754_hypot(x,y);
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| #else
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| 	double z;
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| 	z = __ieee754_hypot(x,y);
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| 	if(_LIB_VERSION == _IEEE_) return z;
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| 	if((!finite(z))&&finite(x)&&finite(y))
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| 	    return __kernel_standard(x,y,4); /* hypot overflow */
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| 	else
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| 	    return z;
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| #endif
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| }
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