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30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
/* Copy sign bit between floating-point values. RISC-V version.
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Copyright (C) 2017-2023 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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#define NO_MATH_REDIRECT
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#include <math.h>
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#include <libm-alias-double.h>
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double
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__copysign (double x, double y)
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{
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asm ("fsgnj.d %0, %1, %2" : "=f" (x) : "f" (x), "f" (y));
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return x;
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}
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libm_alias_double (__copysign, copysign)
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