Mercurial > repo
view src/ploki/random.c @ 5015:a72d5a61b190
<oerjan> slashlearn fnord/? \xc2\xaf\\(\xc2\xb0\xe2\x80\x8b_o)/\xc2\xaf
author | HackBot |
---|---|
date | Fri, 03 Oct 2014 11:30:54 +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); }