You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.7 KiB
59 lines
1.7 KiB
/*- |
|
* Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> |
|
* All rights reserved. |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions |
|
* are met: |
|
* 1. Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* 2. Redistributions in binary form must reproduce the above copyright |
|
* notice, this list of conditions and the following disclaimer in the |
|
* documentation and/or other materials provided with the distribution. |
|
* |
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
|
* SUCH DAMAGE. |
|
* |
|
* $FreeBSD$ |
|
*/ |
|
|
|
#include <math.h> |
|
|
|
#include "fpmath.h" |
|
|
|
int __signbit(double d) |
|
{ |
|
union IEEEd2bits u; |
|
|
|
u.d = d; |
|
return (u.bits.sign); |
|
} |
|
|
|
int __signbitf(float f) |
|
{ |
|
union IEEEf2bits u; |
|
|
|
u.f = f; |
|
return (u.bits.sign); |
|
} |
|
|
|
#ifdef __LP64__ |
|
int __signbitl(long double e) |
|
{ |
|
union IEEEl2bits u; |
|
|
|
u.e = e; |
|
return (u.bits.sign); |
|
} |
|
#else // __LP32__ |
|
__weak_reference(__signbit, __signbitl); |
|
#endif // __LP64__
|
|
|