Mercurial > repo
view src/ploki/random.c @ 5983:e9e46956a506
<oerjan> mk wisdom/welcome.sv//Hej och v\xc3\xa4lkommen till den internationella knutpunkten f\xc3\xb6r esoterisk programmeringsspr\xc3\xa5ksdesign och -drifts\xc3\xa4ttning! F\xc3\xb6r mer information, se v\xc3\xa5r wiki: <http://esolangs.org/>. (F\xc3\xb6r den andra sortens esoterism, pr\xc3\xb6va #esoteric p\xc3\xa5 EFnet eller DALnet.)
author | HackBot |
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date | Mon, 14 Sep 2015 17:49:06 +0000 |
parents | ac0403686959 |
children |
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#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); }