| | 1 | /* |
| | 2 | * Copyright (c) 1993 Martin Birgmeier |
| | 3 | * All rights reserved. |
| | 4 | * |
| | 5 | * You may redistribute unmodified or modified versions of this source |
| | 6 | * code provided that the above copyright notice and this and the |
| | 7 | * following conditions are retained. |
| | 8 | * |
| | 9 | * This software is provided ``as is'', and comes with no warranties |
| | 10 | * of any kind. I shall in no event be liable for anything that happens |
| | 11 | * to anyone/anything when using this software. |
| | 12 | */ |
| | 13 | |
| | 14 | #include <sys/cdefs.h> |
| | 15 | __FBSDID("$FreeBSD: src/lib/libc/gen/erand48.c,v 1.2 2002/03/22 21:52:05 obrien Exp $"); |
| | 16 | |
| | 17 | #include "rand48.h" |
| | 18 | |
| | 19 | double |
| | 20 | erand48(unsigned short xseed[3]) |
| | 21 | { |
| | 22 | _dorand48(xseed); |
| | 23 | return ldexp((double) xseed[0], -48) + |
| | 24 | ldexp((double) xseed[1], -32) + |
| | 25 | ldexp((double) xseed[2], -16); |
| | 26 | } |
projects / apple / libc.git / blame_incremental