| 1 | /* w_hypotl.c -- long double version of w_hypot.c. | 
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| 2 | * Conversion to long double by Ulrich Drepper, | 
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| 3 | * Cygnus Support, drepper@cygnus.com. | 
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| 4 | */ | 
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| 5 |  | 
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| 6 | /* | 
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| 7 | * ==================================================== | 
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| 8 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | 
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| 9 | * | 
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| 10 | * Developed at SunPro, a Sun Microsystems, Inc. business. | 
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| 11 | * Permission to use, copy, modify, and distribute this | 
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| 12 | * software is freely granted, provided that this notice | 
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| 13 | * is preserved. | 
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| 14 | * ==================================================== | 
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| 15 | */ | 
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| 16 |  | 
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| 17 | /* | 
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| 18 | * wrapper hypotl(x,y) | 
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| 19 | */ | 
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| 20 |  | 
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| 21 | #include <math.h> | 
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| 22 | #include <math_private.h> | 
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| 23 | #include <math-svid-compat.h> | 
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| 24 | #include <libm-alias-ldouble.h> | 
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| 25 |  | 
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| 26 |  | 
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| 27 | #if LIBM_SVID_COMPAT | 
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| 28 | long double | 
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| 29 | __hypotl(long double x, long double y) | 
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| 30 | { | 
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| 31 | long double z; | 
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| 32 | z = __ieee754_hypotl(x,y); | 
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| 33 | if(__builtin_expect(!isfinite(z), 0) | 
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| 34 | && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_) | 
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| 35 | return __kernel_standard_l(x, y, 204); /* hypot overflow */ | 
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| 36 |  | 
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| 37 | return z; | 
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| 38 | } | 
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| 39 | libm_alias_ldouble (__hypot, hypot) | 
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| 40 | #endif | 
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| 41 |  | 
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