view src/ploki/random.c @ 7408:4315d5bac235

<b_jonas> slashlearn Ravnica/Ravnica: City of Guilds is a city of guilds. \xe2\x80\x9cCity of Guilds\xe2\x80\x9d is part of its name. The Wizards of the Coast Marketing Department: We Sell Anything thought players might not notice it was a City of Guilds unless they put the tagline into the name.
author HackBot
date Sun, 17 Apr 2016 19:29:52 +0000
parents ac0403686959
children
line wrap: on
line source

#include "config.h"
#include "random.h"

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void randseed(void) {
	unsigned seed;

	seed = time(NULL);
	#if HAVE_DEV_URANDOM_P
	{
		FILE *fp;

		if ((fp = fopen("/dev/urandom", "rb"))) {
			fread(&seed, sizeof seed, 1, fp);
			fclose(fp);
		}
	}
	#endif
	srand(seed);
}

double randval(void) {
	return rand() / (RAND_MAX + 1.0);
}