glibc/sysdeps/m68k/fpu/bits/fenv.h
Ulrich Drepper d111572f2f Update.
1998-02-26  Ulrich Drepper  <drepper@cygnus.com>

	* nis/ypclnt.c (yp_master): Check result of strdup.
	Patch by Thorsten Kukuk.

1998-02-26  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/ypclnt.c: Give clnt handle after error checking free, change
	return codes to fix problems with rpc.nisd in YP mode on Ultra's.

1998-02-26 09:00  Ulrich Drepper  <drepper@cygnus.com>

	* misc/fstab.c: Partly rewritten to use dynamically allocated buffer.
	Patch by Joe Keane <jgk@jgk.org>.

	* misc/fstab.h (struct fstab): Change fs_type member to be const.
	* misc/fstab.c: Remove casts in fs_type assignments.

1998-02-26  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/i386/fpu/bits/fenv.h: Correct typo.  ISO C 9X defines
	FE_TOWARDZERO and not FE_TOWARDSZERO.  Reported by H.J. Lu.
	* sysdeps/sparc/sparc64/fpu/bits/fenv.h: Likewise.
	* sysdeps/sparc/sparc32/fpu/bits/fenv.h: Likewise.
	* sysdeps/powerpc/bits/fenv.h: Likewise.
	* sysdeps/m68k/fpu/bits/fenv.h: Likewise.
	* sysdeps/generic/bits/fenv.h: Likewise.
	* sysdeps/alpha/fpu/bits/fenv.h: Likewise.
	* sysdeps/i386/fpu/fesetenv.c (fesetenv): Likewise.
	* sysdeps/powerpc/test-arith.c (main): Likewise.

1998-02-25  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/fpu/bits/mathinline.h: Also fix i386 versions of
	the comparison macros.

1998-02-21 20:14  H.J. Lu  <hjl@gnu.org>

	* sysdeps/libm-ieee754/s_log2.c (ln2): Added.
	(__log2): Fixed return values.
	* sysdeps/libm-ieee754/s_log2f.c: Likewise.

1998-02-25  Ulrich Drepper  <drepper@cygnus.com>

	* math/math.h (isunordered): Rename local variables to ensure
	correct code.  Reported by HJ Lu.

1998-02-25 10:34  Ulrich Drepper  <drepper@cygnus.com>

	* sysdpes/i386/fpu/bits/mathinline.h (isgreater, isgreaterequal,
	isless, islessequal, islessgreater, isunordered): Fix syntax for
	fucompip instruction.
	(isless, islessequal): Fix logic.

1998-02-21  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* math/libm-test.c (sqrt_test): Add test for sqrt(2).
	(comparisons_test): New tests for comparison macros.
1998-02-26 11:20:59 +00:00

80 lines
2.5 KiB
C

/* Copyright (C) 1997, 1998 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 _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif
/* Define bits representing the exception. We use the bit positions of
the appropriate bits in the FPSR Accrued Exception Byte. */
enum
{
FE_INEXACT = 1 << 3,
#define FE_INEXACT FE_INEXACT
FE_DIVBYZERO = 1 << 4,
#define FE_DIVBYZERO FE_DIVBYZERO
FE_UNDERFLOW = 1 << 5,
#define FE_UNDERFLOW FE_UNDERFLOW
FE_OVERFLOW = 1 << 6,
#define FE_OVERFLOW FE_OVERFLOW
FE_INVALID = 1 << 7
#define FE_INVALID FE_INVALID
};
#define FE_ALL_EXCEPT \
(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
/* The m68k FPU supports all of the four defined rounding modes. We use
the bit positions in the FPCR Mode Control Byte as the values for the
appropriate macros. */
enum
{
FE_TONEAREST = 0,
#define FE_TONEAREST FE_TONEAREST
FE_TOWARDZERO = 1 << 4,
#define FE_TOWARDZERO FE_TOWARDZERO
FE_DOWNWARD = 2 << 4,
#define FE_DOWNWARD FE_DOWNWARD
FE_UPWARD = 3 << 4
#define FE_UPWARD FE_UPWARD
};
/* Type representing exception flags. */
typedef unsigned int fexcept_t;
/* Type representing floating-point environment. This structure
corresponds to the layout of the block written by `fmovem'. */
typedef struct
{
unsigned int control_register;
unsigned int status_register;
unsigned int instruction_address;
}
fenv_t;
/* If the default argument is used we use this value. */
#define FE_DFL_ENV ((fenv_t *) -1)
#ifdef __USE_GNU
/* Floating-point environment where none of the exceptions are masked. */
# define FE_NOMASK_ENV ((fenv_t *) -2)
#endif