Mercurial > repo
view src/ploki/random.c @ 6745:9fa261e3c10e
<zgrep> ` echo \'f=`echo "$1" | sed \'"\'"\'s/ = .*$//\'"\'"\'`;c=`echo "$1" | sed \'"\'"\'s/^.* = //\'"\'"\'`;echo "$c" >> "$f"\' > bin/append
author | HackBot |
---|---|
date | Wed, 10 Feb 2016 03:38:01 +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); }