GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/stdlib/drand48.c Lines: 0 7 0.0 %
Date: 2017-11-13 Branches: 0 2 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: drand48.c,v 1.7 2015/09/14 13:30:17 guenther Exp $ */
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/*
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 * Copyright (c) 1993 Martin Birgmeier
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 * All rights reserved.
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 *
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 * You may redistribute unmodified or modified versions of this source
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 * code provided that the above copyright notice and this and the
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 * following conditions are retained.
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 *
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 * This software is provided ``as is'', and comes with no warranties
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 * of any kind. I shall in no event be liable for anything that happens
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 * to anyone/anything when using this software.
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 */
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#include <math.h>
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#include "rand48.h"
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double
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drand48(void)
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{
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	if (__rand48_deterministic == 0) {
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		unsigned short rseed[3];
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		arc4random_buf(rseed, sizeof rseed);
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		return ldexp((double) rseed[0], -48) +
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		       ldexp((double) rseed[1], -32) +
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		       ldexp((double) rseed[2], -16);
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	}
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	return erand48(__rand48_seed);
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}