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- /* Copyright (C) 1992 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #ifndef _IEEE754_H
- #define _IEEE754_H
-
- #include <endian.h>
-
- union ieee754_double
- {
- double d;
-
- /* This is the IEEE 754 double-precision format. */
- struct
- {
- #if __BYTE_ORDER == __BIG_ENDIAN
- unsigned int negative:1;
- unsigned int exponent:11;
- /* Together these comprise the mantissa. */
- unsigned int mantissa0:20;
- unsigned int mantissa1:32;
- #endif
- #if __BYTE_ORDER == __LITTLE_ENDIAN
- /* Together these comprise the mantissa. */
- unsigned int mantissa1:32;
- unsigned int mantissa0:20;
- unsigned int exponent:11;
- unsigned int negative:1;
- #endif
- } ieee;
- };
-
- #define _IEEE754_DOUBLE_BIAS 0x3ff /* added to exp of ieee754_double */
-
- #ifdef __i386__
-
- union i387_float
- {
- float f;
-
- /* This is the i387 single-precision format. */
- struct
- {
- unsigned int mantissa:23;
- unsigned int exponent:8;
- unsigned int negative:1;
- } i387;
- };
-
- #define _I387_FLOAT_BIAS 0x7f /* added to exp of i387_float */
-
- #endif /* __i387__ */
-
- #endif /* _IEEE754_H */
-