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