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annotate libquadmath/math/finiteq.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
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1 /* s_finitel.c -- long double version of s_finite.c.
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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2 * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
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3 */
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4
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5 /*
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6 * ====================================================
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Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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8 *
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9 * Developed at SunPro, a Sun Microsystems, Inc. business.
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10 * Permission to use, copy, modify, and distribute this
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11 * software is freely granted, provided that this notice
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12 * is preserved.
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13 * ====================================================
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14 */
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16 #if defined(LIBM_SCCS) && !defined(lint)
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17 static char rcsid[] = "$NetBSD: $";
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18 #endif
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19
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20 /*
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21 * finiteq(x) returns 1 is x is finite, else 0;
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22 * no branching!
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23 */
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25 #include "quadmath-imp.h"
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27 int finiteq(__float128 x)
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28 {
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29 int64_t hx;
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30 GET_FLT128_MSW64(hx,x);
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31 return (int)((uint64_t)((hx&0x7fff000000000000LL)
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32 -0x7fff000000000000LL)>>63);
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33 }