about summary refs log tree commit diff
path: root/sysdeps/ia64/ieee754.h
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2000-09-30 22:03:51 +0000
committerUlrich Drepper <drepper@redhat.com>2000-09-30 22:03:51 +0000
commitaaca11d8a11e4c04c7a5ed1db0adaf4a4c192853 (patch)
tree398c535c9c0b0d781c7f91923a60f2ff61901948 /sysdeps/ia64/ieee754.h
parent060801994e693b73d97401c15c5e078c2cd8ccd9 (diff)
downloadglibc-aaca11d8a11e4c04c7a5ed1db0adaf4a4c192853.tar.gz
glibc-aaca11d8a11e4c04c7a5ed1db0adaf4a4c192853.tar.xz
glibc-aaca11d8a11e4c04c7a5ed1db0adaf4a4c192853.zip
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.h205
1 files changed, 205 insertions, 0 deletions
diff --git a/sysdeps/ia64/ieee754.h b/sysdeps/ia64/ieee754.h
new file mode 100644
index 0000000000..ec6b5518c6
--- /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 */