diff options
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits/fenv.h')
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/fenv.h | 145 |
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 |