glibc/math/w_j1l_compat.c

68 lines
1.8 KiB
C

/* Copyright (C) 2011-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <libm-alias-ldouble.h>
#if LIBM_SVID_COMPAT
/* wrapper j1l */
long double
__j1l (long double x)
{
if (__builtin_expect (isgreater (fabsl (x), X_TLOSS), 0)
&& _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_)
/* j1(|x|>X_TLOSS) */
return __kernel_standard_l (x, x, 236);
return __ieee754_j1l (x);
}
libm_alias_ldouble (__j1, j1)
/* wrapper y1l */
long double
__y1l (long double x)
{
if (__builtin_expect (islessequal (x, 0.0L) || isgreater (x, X_TLOSS), 0)
&& _LIB_VERSION != _IEEE_)
{
if (x < 0.0L)
{
/* d = zero/(x-x) */
feraiseexcept (FE_INVALID);
return __kernel_standard_l (x, x, 211);
}
else if (x == 0.0L)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard_l (x, x, 210);
}
else if (_LIB_VERSION != _POSIX_)
/* y1(x>X_TLOSS) */
return __kernel_standard_l (x, x, 237);
}
return __ieee754_y1l (x);
}
libm_alias_ldouble (__y1, y1)
#endif