mirror of https://gitee.com/openkylin/glibc.git
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* Return number with minimum magnitude.
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Copyright (C) 2016-2022 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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FLOAT
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M_DECL_FUNC (__fminimum_mag_num) (FLOAT x, FLOAT y)
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{
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FLOAT ax = M_FABS (x);
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FLOAT ay = M_FABS (y);
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if (isless (ax, ay))
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return x;
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else if (isgreater (ax, ay))
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return y;
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else if (ax == ay)
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return (M_COPYSIGN (1, x) <= M_COPYSIGN (1, y) ? x : y);
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else
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return isnan (y) ? (isnan (x) ? x + y : x) : y;
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}
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declare_mgen_alias (__fminimum_mag_num, fminimum_mag_num);
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