summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/powerpc/bits/fenv.h
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits/fenv.h')
-rw-r--r--libc/sysdeps/linux/powerpc/bits/fenv.h145
1 files changed, 0 insertions, 145 deletions
diff --git a/libc/sysdeps/linux/powerpc/bits/fenv.h b/libc/sysdeps/linux/powerpc/bits/fenv.h
deleted file mode 100644
index 8509b4b0c..000000000
--- a/libc/sysdeps/linux/powerpc/bits/fenv.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/* Copyright (C) 1997, 1998, 1999 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 Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; 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 FPSCR... */
-enum
- {
- FE_INEXACT = 1 << (31 - 6),
-#define FE_INEXACT FE_INEXACT
- FE_DIVBYZERO = 1 << (31 - 5),
-#define FE_DIVBYZERO FE_DIVBYZERO
- FE_UNDERFLOW = 1 << (31 - 4),
-#define FE_UNDERFLOW FE_UNDERFLOW
- FE_OVERFLOW = 1 << (31 - 3),
-#define FE_OVERFLOW FE_OVERFLOW
-
- /* ... except for FE_INVALID, for which we use bit 31. FE_INVALID
- actually corresponds to bits 7 through 12 and 21 through 23
- in the FPSCR, but we can't use that because the current draft
- says that it must be a power of 2. Instead we use bit 2 which
- is the summary bit for all the FE_INVALID exceptions, which
- kind of makes sense. */
- FE_INVALID = 1 << (31 - 2),
-#define FE_INVALID FE_INVALID
-
-#ifdef __USE_GNU
- /* Breakdown of the FE_INVALID bits. Setting FE_INVALID on an
- input to a routine is equivalent to setting all of these bits;
- FE_INVALID will be set on output from a routine iff one of
- these bits is set. Note, though, that you can't disable or
- enable these exceptions individually. */
-
- /* Operation with SNaN. */
- FE_INVALID_SNAN = 1 << (31 - 7),
-# define FE_INVALID_SNAN FE_INVALID_SNAN
-
- /* Inf - Inf */
- FE_INVALID_ISI = 1 << (31 - 8),
-# define FE_INVALID_ISI FE_INVALID_ISI
-
- /* Inf / Inf */
- FE_INVALID_IDI = 1 << (31 - 9),
-# define FE_INVALID_IDI FE_INVALID_IDI
-
- /* 0 / 0 */
- FE_INVALID_ZDZ = 1 << (31 - 10),
-# define FE_INVALID_ZDZ FE_INVALID_ZDZ
-
- /* Inf * 0 */
- FE_INVALID_IMZ = 1 << (31 - 11),
-# define FE_INVALID_IMZ FE_INVALID_IMZ
-
- /* Comparison with NaN or SNaN. */
- FE_INVALID_COMPARE = 1 << (31 - 12),
-# define FE_INVALID_COMPARE FE_INVALID_COMPARE
-
- /* Invalid operation flag for software (not set by hardware). */
- /* Note that some chips don't have this implemented, presumably
- because no-one expected anyone to write software for them %-). */
- FE_INVALID_SOFTWARE = 1 << (31 - 21),
-# define FE_INVALID_SOFTWARE FE_INVALID_SOFTWARE
-
- /* Square root of negative number (including -Inf). */
- /* Note that some chips don't have this implemented. */
- FE_INVALID_SQRT = 1 << (31 - 22),
-# define FE_INVALID_SQRT FE_INVALID_SQRT
-
- /* Conversion-to-integer of a NaN or a number too large or too small. */
- FE_INVALID_INTEGER_CONVERSION = 1 << (31 - 23)
-# define FE_INVALID_INTEGER_CONVERSION FE_INVALID_INTEGER_CONVERSION
-
-# define FE_ALL_INVALID \
- (FE_INVALID_SNAN | FE_INVALID_ISI | FE_INVALID_IDI | FE_INVALID_ZDZ \
- | FE_INVALID_IMZ | FE_INVALID_COMPARE | FE_INVALID_SOFTWARE \
- | FE_INVALID_SQRT | FE_INVALID_INTEGER_CONVERSION)
-#endif
- };
-
-#define FE_ALL_EXCEPT \
- (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
-
-/* PowerPC chips support all of the four defined rounding modes. We
- use the bit pattern in the FPSCR as the values for the
- appropriate macros. */
-enum
- {
- FE_TONEAREST = 0,
-#define FE_TONEAREST FE_TONEAREST
- FE_TOWARDZERO = 1,
-#define FE_TOWARDZERO FE_TOWARDZERO
- FE_UPWARD = 2,
-#define FE_UPWARD FE_UPWARD
- FE_DOWNWARD = 3
-#define FE_DOWNWARD FE_DOWNWARD
- };
-
-/* Type representing exception flags. */
-typedef unsigned int fexcept_t;
-
-/* Type representing floating-point environment. We leave it as 'double'
- for efficiency reasons (rather than writing it to a 32-bit integer). */
-typedef double fenv_t;
-
-/* If the default argument is used we use this value. */
-extern const fenv_t __fe_dfl_env;
-#define FE_DFL_ENV (&__fe_dfl_env)
-
-#ifdef __USE_GNU
-/* Floating-point environment where all exceptions are enabled. Note that
- this is not sufficient to give you SIGFPE. */
-extern const fenv_t __fe_enabled_env;
-# define FE_ENABLED_ENV (&__fe_enabled_env)
-
-/* Floating-point environment with (processor-dependent) non-IEEE floating
- point. */
-extern const fenv_t __fe_nonieee_env;
-# define FE_NONIEEE_ENV (&__fe_nonieee_env)
-
-/* Floating-point environment with all exceptions enabled. Note that
- just evaluating this value will set the processor into 'FPU
- exceptions imprecise recoverable' mode, which may cause a significant
- performance penalty (but have no other visible effect). */
-extern const fenv_t *__fe_nomask_env (void);
-# define FE_NOMASK_ENV (__fe_nomask_env ())
-#endif