| /*- |
| * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> |
| * Copyright (c) 2002 David Schultz <das@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: src/lib/libc/include/fpmath.h,v 1.3 2005/02/06 03:23:31 das Exp $ |
| */ |
| |
| #include <endian.h> |
| #include "_fpmath.h" |
| |
| union IEEEf2bits { |
| float f; |
| struct { |
| #if __BYTE_ORDER == __LITTLE_ENDIAN |
| unsigned int man :23; |
| unsigned int exp :8; |
| unsigned int sign :1; |
| #else /* _BIG_ENDIAN */ |
| unsigned int sign :1; |
| unsigned int exp :8; |
| unsigned int man :23; |
| #endif |
| } bits; |
| }; |
| |
| #define DBL_MANH_SIZE 20 |
| #define DBL_MANL_SIZE 32 |
| |
| union IEEEd2bits { |
| double d; |
| struct { |
| /* #ifdef __ARMEB__ */ |
| #if (__BYTE_ORDER == __BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__)) |
| unsigned int manh :20; |
| unsigned int exp :11; |
| unsigned int sign :1; |
| unsigned int manl :32; |
| #elif __BYTE_ORDER == __LITTLE_ENDIAN |
| unsigned int manl :32; |
| unsigned int manh :20; |
| unsigned int exp :11; |
| unsigned int sign :1; |
| #elif __BYTE_ORDER == __BIG_ENDIAN |
| unsigned int sign :1; |
| unsigned int exp :11; |
| unsigned int manh :20; |
| unsigned int manl :32; |
| #endif |
| } bits; |
| }; |
| |
| /* |
| * The BSD "long double" functions are broken when sizeof(long double) == sizeof(double). |
| * Android works around those cases by replacing the broken functions with our own trivial stubs |
| * that call the regular "double" function. |
| */ |
| #define __fpclassifyl __broken__fpclassify |
| #define __isfinitel __broken__isfinitel |
| #define __isinfl __broken__isinfl |
| #define __isnanl __broken__isnanl |
| #define __isnormall __broken__isnormall |
| #define __signbitl __broken_signbitl |