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/* Return number with maximum magnitude.
Copyright (C) 2016-2022 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, see
<https://www.gnu.org/licenses/>. */
#include <math.h>
FLOAT
M_DECL_FUNC (__fmaximum_mag_num) (FLOAT x, FLOAT y)
{
FLOAT ax = M_FABS (x);
FLOAT ay = M_FABS (y);
if (isgreater (ax, ay))
return x;
else if (isless (ax, ay))
return y;
else if (ax == ay)
return (M_COPYSIGN (1, x) >= M_COPYSIGN (1, y) ? x : y);
else
return isnan (y) ? (isnan (x) ? x + y : x) : y;
}
declare_mgen_alias (__fmaximum_mag_num, fmaximum_mag_num);
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