/* * fast pseudo random generation * * Copyright (C) 2007 iptelorg GmbH * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * 2007-06-15 wrapper around isaac (see * http://www.burtleburtle.net/bob/rand/isaacafa.html) (andrei) */ #ifndef _fastrand_h #define _fastrand_h /* side effect: seeds also random w/ seed */ void fastrand_seed(unsigned int seed); /* generate a 32 bit random number */ unsigned int fastrand(void); /* generate a random number between 0 and max inclusive ( 0 <= r <= max) * should not be used for cryptography */ unsigned int fastrand_max(unsigned int max); #endif