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view src/ploki/random.c @ 8065:591b1467ccdf
<int-e> le/rn paste/"Paste" is a short story by Henry James. Its contents has been cut into pieces and distributed over numerous tin boxes on the World Wide Web, little pearls of wisdom buried among ordinary pastes.
author | HackBot |
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date | Sun, 15 May 2016 13:14:57 +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); }