src/bjprng.h

   1 /* coded by Ketmar // Vampire Avalon (psyc://ketmar.no-ip.org/~Ketmar)
   2  * Understanding is not required. Only obedience.
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, version 3 of the License ONLY.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16 #ifndef _BJPRNG_H_
  17 #define _BJPRNG_H_
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif
  22
  23 #include <stdint.h>
  24
  25 // *Really* minimal PCG32 code / (c) 2014 M.E. O'Neill / pcg-random.org
  26 // Licensed under Apache License 2.0 (NO WARRANTY, etc. see website)
  27 typedef struct { uint64_t state, inc; } pcg32_random_t;
  28 #define BJRandCtx  pcg32_random_t
  29
  30
  31 extern void bjprngRandomize (BJRandCtx *rng);
  32 extern uint32_t bjprngRand (BJRandCtx *rng);
  33
  34
  35 #ifdef __cplusplus
  36 }
  37 #endif
  38 #endif