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 hypot(x,y)

    29  */

    30 

    31 #include "fdlibm.h"

    32 

    33 

    34 #ifdef __STDC__

    35         double hypot(double x, double y)/* wrapper hypot */

    36 #else

    37         double hypot(x,y)               /* wrapper hypot */

    38         double x,y;

    39 #endif

    40 {

    41 #ifdef _IEEE_LIBM

    42         return __ieee754_hypot(x,y);

    43 #else

    44         double z;

    45         z = __ieee754_hypot(x,y);

    46         if(_LIB_VERSION == _IEEE_) return z;

    47         if((!finite(z))&&finite(x)&&finite(y))

    48             return __kernel_standard(x,y,4); /* hypot overflow */

    49         else

    50             return z;

    51 #endif

    52 }