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2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/* Copyright (C) 1997-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _FENV_H
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# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
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#endif
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/* Define bits representing the exception. We use the bit positions
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of the appropriate bits in the FPU control word. */
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enum
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{
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FE_INVALID =
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#define FE_INVALID 0x01
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FE_INVALID,
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__FE_DENORM = 0x02,
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FE_DIVBYZERO =
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#define FE_DIVBYZERO 0x04
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FE_DIVBYZERO,
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FE_OVERFLOW =
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#define FE_OVERFLOW 0x08
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FE_OVERFLOW,
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FE_UNDERFLOW =
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#define FE_UNDERFLOW 0x10
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FE_UNDERFLOW,
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FE_INEXACT =
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#define FE_INEXACT 0x20
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FE_INEXACT
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};
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#define FE_ALL_EXCEPT \
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(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
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/* The ix87 FPU supports all of the four defined rounding modes. We
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use again the bit positions in the FPU control word as the values
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for the appropriate macros. */
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enum
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{
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FE_TONEAREST =
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#define FE_TONEAREST 0
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FE_TONEAREST,
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FE_DOWNWARD =
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#define FE_DOWNWARD 0x400
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FE_DOWNWARD,
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FE_UPWARD =
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#define FE_UPWARD 0x800
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FE_UPWARD,
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FE_TOWARDZERO =
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#define FE_TOWARDZERO 0xc00
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FE_TOWARDZERO
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};
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/* Type representing exception flags. */
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typedef unsigned short int fexcept_t;
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/* Type representing floating-point environment. This structure
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corresponds to the layout of the block written by the `fstenv'
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instruction and has additional fields for the contents of the MXCSR
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register as written by the `stmxcsr' instruction. */
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typedef struct
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{
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unsigned short int __control_word;
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unsigned short int __glibc_reserved1;
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unsigned short int __status_word;
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unsigned short int __glibc_reserved2;
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unsigned short int __tags;
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unsigned short int __glibc_reserved3;
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unsigned int __eip;
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unsigned short int __cs_selector;
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unsigned int __opcode:11;
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unsigned int __glibc_reserved4:5;
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unsigned int __data_offset;
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unsigned short int __data_selector;
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unsigned short int __glibc_reserved5;
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#ifdef __x86_64__
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unsigned int __mxcsr;
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#endif
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}
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fenv_t;
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/* If the default argument is used we use this value. */
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#define FE_DFL_ENV ((const fenv_t *) -1)
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#ifdef __USE_GNU
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/* Floating-point environment where none of the exception is masked. */
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# define FE_NOMASK_ENV ((const fenv_t *) -2)
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#endif
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#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
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/* Type representing floating-point control modes. */
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typedef struct
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{
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unsigned short int __control_word;
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unsigned short int __glibc_reserved;
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unsigned int __mxcsr;
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}
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femode_t;
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/* Default floating-point control modes. */
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# define FE_DFL_MODE ((const femode_t *) -1L)
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#endif
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