diff options
Diffstat (limited to 'math/w_j0l.c')
| -rw-r--r-- | math/w_j0l.c | 108 |
1 files changed, 46 insertions, 62 deletions
diff --git a/math/w_j0l.c b/math/w_j0l.c index a91457d374..a16363d53a 100644 --- a/math/w_j0l.c +++ b/math/w_j0l.c @@ -1,76 +1,60 @@ -/* w_j0l.c -- long double version of w_j0.c. - * Conversion to long double by Ulrich Drepper, - * Cygnus Support, drepper@cygnus.com. - */ +/* Copyright (C) 2011 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gmail.com>, 2011. -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ + 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. -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: $"; -#endif + 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. -/* - * wrapper j0l(long double x), y0l(long double x) - */ + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ +#include <fenv.h> #include <math.h> #include <math_private.h> -#ifdef __STDC__ - long double __j0l(long double x) /* wrapper j0l */ -#else - long double __j0l(x) /* wrapper j0 */ - long double x; -#endif + +/* wrapper j0l */ +long double +__j0l (long double x) { -#ifdef _IEEE_LIBM - return __ieee754_j0l(x); -#else - long double z = __ieee754_j0l(x); - if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z; - if(fabsl(x)>X_TLOSS) { - return __kernel_standard(x,x,234); /* j0(|x|>X_TLOSS) */ - } else - return z; -#endif + if (__builtin_expect (fabsl (x) > X_TLOSS, 0) && _LIB_VERSION != _IEEE_) + /* j0(|x|>X_TLOSS) */ + return __kernel_standard (x, x, 234); + + return __ieee754_j0l (x); } weak_alias (__j0l, j0l) -#ifdef __STDC__ - long double __y0l(long double x) /* wrapper y0l */ -#else - long double __y0l(x) /* wrapper y0 */ - long double x; -#endif + +/* wrapper y0l */ +long double +__y0l (long double x) { -#ifdef _IEEE_LIBM - return __ieee754_y0l(x); -#else - long double z; - z = __ieee754_y0l(x); - if(_LIB_VERSION == _IEEE_ || __isnanl(x) ) return z; - if(x <= 0.0){ - if(x==0.0) - /* d= -one/(x-x); */ - return __kernel_standard(x,x,208); - else - /* d = zero/(x-x); */ - return __kernel_standard(x,x,209); - } - if(x>X_TLOSS) { - return __kernel_standard(x,x,235); /* y0(x>X_TLOSS) */ - } else - return z; -#endif -} + if (__builtin_expect (x <= 0.0L || x > X_TLOSS, 0) && _LIB_VERSION != _IEEE_) + { + if (x < 0.0L) + { + /* d = zero/(x-x) */ + feraiseexcept (FE_INVALID); + return __kernel_standard (x, x, 209); + } + else if (x == 0.0L) + /* d = -one/(x-x) */ + return __kernel_standard (x, x, 208); + else + /* y0(x>X_TLOSS) */ + return __kernel_standard (x, x, 235); + } + return __ieee754_y0l (x); +} weak_alias (__y0l, y0l) |