1 /* $OpenBSD: srand48.c,v 1.6 2015年09月13日 08:31:48 guenther Exp $ */ 2 /* 3 * Copyright (c) 1993 Martin Birgmeier 4 * All rights reserved. 5 * 6 * You may redistribute unmodified or modified versions of this source 7 * code provided that the above copyright notice and this and the 8 * following conditions are retained. 9 * 10 * This software is provided ``as is'', and comes with no warranties 11 * of any kind. I shall in no event be liable for anything that happens 12 * to anyone/anything when using this software. 13 */ 14 15#include "rand48.h" 16 17 int __rand48_deterministic; 18 19 void 20 srand48(long seed) 21{ 22 srand48_deterministic(seed); 23 __rand48_deterministic = 0; 24} 25 26 void 27 srand48_deterministic(long seed) 28{ 29 __rand48_deterministic = 1; 30 __rand48_seed[0] = RAND48_SEED_0; 31 __rand48_seed[1] = (unsigned short) seed; 32 __rand48_seed[2] = (unsigned short) (seed >> 16); 33 __rand48_mult[0] = RAND48_MULT_0; 34 __rand48_mult[1] = RAND48_MULT_1; 35 __rand48_mult[2] = RAND48_MULT_2; 36 __rand48_add = RAND48_ADD; 37} 38 DEF_WEAK(srand48_deterministic); 39