/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #define _RESEARCH_SOURCE#include <stdlib.h>#include <libv.h>/*	random number generator from cacm 31 10, oct 88	for 32 bit integers (called long here)*/ #ifdef	MAIN#define	A	16807#define	M	2147483647#define	Q	127773#define	R	2836#else#define	A	48271#define	M	2147483647#define	Q	44488#define	R	3399#endif static long seed = 1; voidsrand(unsigned int newseed){	seed = newseed;} longlrand(void){	long lo, hi, test; 	hi = seed/Q;	lo = seed%Q;	test = A*lo - R*hi;	if(test > 0)		seed = test;	else		seed = test+M;	return(seed);} intrand(void){	return lrand()%(RAND_MAX+1);} #ifdef	MAIN main(){	int i; 	for(i = 0; i < 10000; i++)		rand();	if(seed == 1043618065)		printf("     rand: pass\n");	else		printf("*****rand: fail; seed=%u, should be 1043618065\n", seed);	exit(0);}#endif