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author | Ulrich Drepper <drepper@redhat.com> | 2000-09-30 22:03:51 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2000-09-30 22:03:51 +0000 |
commit | aaca11d8a11e4c04c7a5ed1db0adaf4a4c192853 (patch) | |
tree | 398c535c9c0b0d781c7f91923a60f2ff61901948 /sysdeps/ia64/ieee754.h | |
parent | 060801994e693b73d97401c15c5e078c2cd8ccd9 (diff) | |
download | glibc-aaca11d8a11e4c04c7a5ed1db0adaf4a4c192853.zip glibc-aaca11d8a11e4c04c7a5ed1db0adaf4a4c192853.tar.gz glibc-aaca11d8a11e4c04c7a5ed1db0adaf4a4c192853.tar.bz2 |
Update.
2000-09-30 H.J. Lu <hjl@gnu.org>
* sysdeps/ieee754/ldbl-96/s_ceill.c (__ceill): Handle overflow.
* sysdeps/ieee754/ldbl-96/s_floorl.c (__floorl): Likewise.
2000-09-29 H.J. Lu <hjl@gnu.org>
* math/libm-test.inc (init_max_error): Clear all exceptions
before starting test.
(acosh_test): Test for existence of function.
(asinh_test): Likewise.
(atan2_test): Likewise.
(cabs_test): Likewise.
(cacos_test): Likewise.
(cacosh_test): Likewise.
(casin_test): Likewise.
(casinh_test): Likewise.
(catan_test): Likewise.
(catanh_test): Likewise.
(ccos_test): Likewise.
(ccosh_test): Likewise.
(cexp_test): Likewise.
(clog_test): Likewise.
(clog10_test): Likewise.
(cosh_test): Likewise.
(cpow_test): Likewise.
(csin_test): Likewise.
(csinh_test): Likewise.
(csqrt_test): Likewise.
(ctan_test): Likewise.
(ctanh_test): Likewise.
(fmod_test): Likewise.
(hypot_test): Likewise.
(remainder_test): Likewise.
(remquo_test): Likewise.
(sincos_test): Likewise.
(sinh_test): Likewise.
(tanh_test): Likewise.
2000-09-29 H.J. Lu <hjl@gnu.org>
* sysdeps/ia64/ieee754.h: New file.
* sysdeps/ia64/fpu/math_ldbl.h: New file.
2000-09-30 Jakub Jelinek <jakub@redhat.com>
* elf/ldconfig.h (FLAG_X8664_LIB64): Define.
* sysdeps/unix/sysv/linux/i386/readelflib.c: New file.
2000-09-30 Ulrich Drepper <drepper@redhat.com>
* manual/charset.texi: Correct notations, reference to C90 amd 1,
and some other details.
* manual/ctype.texi: Likewise.
Patches by Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>.
Diffstat (limited to 'sysdeps/ia64/ieee754.h')
-rw-r--r-- | sysdeps/ia64/ieee754.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/sysdeps/ia64/ieee754.h b/sysdeps/ia64/ieee754.h new file mode 100644 index 0000000..ec6b551 --- /dev/null +++ b/sysdeps/ia64/ieee754.h @@ -0,0 +1,205 @@ +/* Copyright (C) 2000 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _IEEE754_H + +#define _IEEE754_H 1 +#include <features.h> + +#include <endian.h> + +__BEGIN_DECLS + +union ieee754_float + { + float f; + + /* This is the IEEE 754 single-precision format. */ + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned int negative:1; + unsigned int exponent:8; + unsigned int mantissa:23; +#endif /* Big endian. */ +#if __BYTE_ORDER == __LITTLE_ENDIAN + unsigned int mantissa:23; + unsigned int exponent:8; + unsigned int negative:1; +#endif /* Little endian. */ + } ieee; + + /* This format makes it easier to see if a NaN is a signalling NaN. */ + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned int negative:1; + unsigned int exponent:8; + unsigned int quiet_nan:1; + unsigned int mantissa:22; +#endif /* Big endian. */ +#if __BYTE_ORDER == __LITTLE_ENDIAN + unsigned int mantissa:22; + unsigned int quiet_nan:1; + unsigned int exponent:8; + unsigned int negative:1; +#endif /* Little endian. */ + } ieee_nan; + }; + +#define IEEE754_FLOAT_BIAS 0x7f /* Added to exponent. */ + + +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 /* Big endian. */ +#if __BYTE_ORDER == __LITTLE_ENDIAN +# if __FLOAT_WORD_ORDER == BIG_ENDIAN + unsigned int mantissa0:20; + unsigned int exponent:11; + unsigned int negative:1; + unsigned int mantissa1:32; +# else + /* Together these comprise the mantissa. */ + unsigned int mantissa1:32; + unsigned int mantissa0:20; + unsigned int exponent:11; + unsigned int negative:1; +# endif +#endif /* Little endian. */ + } ieee; + + /* This format makes it easier to see if a NaN is a signalling NaN. */ + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned int negative:1; + unsigned int exponent:11; + unsigned int quiet_nan:1; + /* Together these comprise the mantissa. */ + unsigned int mantissa0:19; + unsigned int mantissa1:32; +#else +# if __FLOAT_WORD_ORDER == BIG_ENDIAN + unsigned int mantissa0:19; + unsigned int quiet_nan:1; + unsigned int exponent:11; + unsigned int negative:1; + unsigned int mantissa1:32; +# else + /* Together these comprise the mantissa. */ + unsigned int mantissa1:32; + unsigned int mantissa0:19; + unsigned int quiet_nan:1; + unsigned int exponent:11; + unsigned int negative:1; +# endif +#endif + } ieee_nan; + }; + +#define IEEE754_DOUBLE_BIAS 0x3ff /* Added to exponent. */ + + +union ieee854_long_double + { + long double d; + + /* This is the IEEE 854 double-extended-precision format. */ + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned int empty0:32; + unsigned int negative:1; + unsigned int exponent:15; + unsigned int empty1:16; + unsigned int mantissa0:32; + unsigned int mantissa1:32; +#endif +#if __BYTE_ORDER == __LITTLE_ENDIAN +# if __FLOAT_WORD_ORDER == BIG_ENDIAN + unsigned int empty0:32; + unsigned int exponent:15; + unsigned int negative:1; + unsigned int empty1:16; + unsigned int mantissa0:32; + unsigned int mantissa1:32; +# else + unsigned int mantissa1:32; + unsigned int mantissa0:32; + unsigned int exponent:15; + unsigned int negative:1; + unsigned int empty1:16; + unsigned int empty0:32; +# endif +#endif + } ieee; + + /* This is for NaNs in the IEEE 854 double-extended-precision format. */ + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned int empty0:32; + unsigned int negative:1; + unsigned int exponent:15; + unsigned int empty1:16; + unsigned int one:1; + unsigned int quiet_nan:1; + unsigned int mantissa0:30; + unsigned int mantissa1:32; +#endif +#if __BYTE_ORDER == __LITTLE_ENDIAN +# if __FLOAT_WORD_ORDER == BIG_ENDIAN + unsigned int empty0:32; + unsigned int exponent:15; + unsigned int negative:1; + unsigned int empty1:16; + unsigned int mantissa0:30; + unsigned int quiet_nan:1; + unsigned int one:1; + unsigned int mantissa1:32; +# else + unsigned int mantissa1:32; + unsigned int mantissa0:30; + unsigned int quiet_nan:1; + unsigned int one:1; + unsigned int exponent:15; + unsigned int negative:1; + unsigned int empty1:16; + unsigned int empty0:32; +# endif +#endif + } ieee_nan; + }; + +#define IEEE854_LONG_DOUBLE_BIAS 0x3fff + +__END_DECLS + +#endif /* ieee754.h */ |