1 

     2 /*

     3  * Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.  Oracle designates this

     9  * particular file as subject to the "Classpath" exception as provided

    10  * by Oracle in the LICENSE file that accompanied this code.

    11  *

    12  * This code is distributed in the hope that it will be useful, but WITHOUT

    13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    15  * version 2 for more details (a copy is included in the LICENSE file that

    16  * accompanied this code).

    17  *

    18  * You should have received a copy of the GNU General Public License version

    19  * 2 along with this work; if not, write to the Free Software Foundation,

    20  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    21  *

    22  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    23  * or visit www.oracle.com if you need additional information or have any

    24  * questions.

    25  */

    26 

    27 /*

    28  * wrapper j0(double x), y0(double x)

    29  */

    30 

    31 #include "fdlibm.h"

    32 

    33 #ifdef __STDC__

    34         double j0(double x)             /* wrapper j0 */

    35 #else

    36         double j0(x)                    /* wrapper j0 */

    37         double x;

    38 #endif

    39 {

    40 #ifdef _IEEE_LIBM

    41         return __ieee754_j0(x);

    42 #else

    43         double z = __ieee754_j0(x);

    44         if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;

    45         if(fabs(x)>X_TLOSS) {

    46                 return __kernel_standard(x,x,34); /* j0(|x|>X_TLOSS) */

    47         } else

    48             return z;

    49 #endif

    50 }

    51 

    52 #ifdef __STDC__

    53         double y0(double x)             /* wrapper y0 */

    54 #else

    55         double y0(x)                    /* wrapper y0 */

    56         double x;

    57 #endif

    58 {

    59 #ifdef _IEEE_LIBM

    60         return __ieee754_y0(x);

    61 #else

    62         double z;

    63         z = __ieee754_y0(x);

    64         if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;

    65         if(x <= 0.0){

    66                 if(x==0.0)

    67                     /* d= -one/(x-x); */

    68                     return __kernel_standard(x,x,8);

    69                 else

    70                     /* d = zero/(x-x); */

    71                     return __kernel_standard(x,x,9);

    72         }

    73         if(x>X_TLOSS) {

    74                 return __kernel_standard(x,x,35); /* y0(x>X_TLOSS) */

    75         } else

    76             return z;

    77 #endif

    78 }