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/* Copyright (C) 2011-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper jn */
double
jn (int n, double x)
{
if (__builtin_expect (isgreater (fabs (x), X_TLOSS), 0)
&& _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_)
/* jn(n,|x|>X_TLOSS) */
return __kernel_standard (n, x, 38);
return __ieee754_jn (n, x);
}
#ifdef NO_LONG_DOUBLE
weak_alias (jn, jnl)
#endif
/* wrapper yn */
double
yn (int n, double x)
{
if (__builtin_expect (islessequal (x, 0.0) || isgreater (x, X_TLOSS), 0)
&& _LIB_VERSION != _IEEE_)
{
if (x < 0.0)
{
/* d = zero/(x-x) */
__feraiseexcept (FE_INVALID);
return __kernel_standard (n, x, 13);
}
else if (x == 0.0)
{
/* d = -one/(x-x) */
__feraiseexcept (FE_DIVBYZERO);
return __kernel_standard (n, x, 12);
}
else if (_LIB_VERSION != _POSIX_)
/* yn(n,x>X_TLOSS) */
return __kernel_standard (n, x, 39);
}
return __ieee754_yn (n, x);
}
#ifdef NO_LONG_DOUBLE
weak_alias (yn, ynl)
#endif
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