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0ac5ae2335
libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* Copyright (C) 2011 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <fenv.h>
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#include <math.h>
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#include <math_private.h>
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/* wrapper jnf */
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float
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jnf (int n, float x)
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{
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if (__builtin_expect (fabsf (x) > (float) X_TLOSS, 0)
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&& _LIB_VERSION != _IEEE_)
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/* jn(n,|x|>X_TLOSS) */
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return __kernel_standard_f (n, x, 138);
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return __ieee754_jnf (n, x);
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}
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/* wrapper ynf */
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float
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ynf (int n, float x)
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{
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if (__builtin_expect (x <= 0.0f || x > (float) X_TLOSS, 0)
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&& _LIB_VERSION != _IEEE_)
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{
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if (x < 0.0f)
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{
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/* d = zero/(x-x) */
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feraiseexcept (FE_INVALID);
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return __kernel_standard_f (n, x, 113);
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}
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else if (x == 0.0)
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/* d = -one/(x-x) */
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return __kernel_standard_f (n, x, 112);
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else
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/* yn(n,x>X_TLOSS) */
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return __kernel_standard_f (n, x, 139);
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}
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return __ieee754_ynf (n, x);
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}
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