GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/arch/amd64/gen/isinfl.c Lines: 0 3 0.0 %
Date: 2017-11-13 Branches: 0 4 0.0 %

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/*	$OpenBSD: isinfl.c,v 1.2 2008/12/09 19:52:33 martynas Exp $	*/
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/*
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 * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <sys/types.h>
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#include <machine/ieee.h>
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#include <math.h>
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int
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__isinfl(long double e)
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{
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	struct ieee_ext *p = (struct ieee_ext *)&e;
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	p->ext_frach &= ~0x80000000;	/* clear normalization bit */
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	return (p->ext_exp == EXT_EXP_INFNAN &&
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	    p->ext_frach == 0 && p->ext_fracl == 0);
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}