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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
55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/* Set NaN payload. flt-32 version.
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Copyright (C) 2016-2021 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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#include <math.h>
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#include <math_private.h>
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#include <libm-alias-float.h>
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#include <nan-high-order-bit.h>
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#include <stdint.h>
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#define SET_HIGH_BIT (HIGH_ORDER_BIT_IS_SET_FOR_SNAN ? SIG : !SIG)
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#define BIAS 0x7f
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#define PAYLOAD_DIG 22
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#define EXPLICIT_MANT_DIG 23
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int
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FUNC (float *x, float payload)
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{
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uint32_t ix;
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GET_FLOAT_WORD (ix, payload);
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int exponent = ix >> EXPLICIT_MANT_DIG;
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/* Test if argument is (a) negative or too large; (b) too small,
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except for 0 when allowed; (c) not an integer. */
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if (exponent >= BIAS + PAYLOAD_DIG
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|| (exponent < BIAS && !(SET_HIGH_BIT && ix == 0))
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|| (ix & ((1U << (BIAS + EXPLICIT_MANT_DIG - exponent)) - 1)) != 0)
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{
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SET_FLOAT_WORD (*x, 0);
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return 1;
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}
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if (ix != 0)
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{
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ix &= (1U << EXPLICIT_MANT_DIG) - 1;
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ix |= 1U << EXPLICIT_MANT_DIG;
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ix >>= BIAS + EXPLICIT_MANT_DIG - exponent;
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}
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ix |= 0x7f800000 | (SET_HIGH_BIT ? 0x400000 : 0);
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SET_FLOAT_WORD (*x, ix);
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return 0;
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}
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