g_src/random.h

   1 #ifndef RANDOM_H
   2 #define RANDOM_H
   3
   4 #ifndef WIN32
   5 #include <stdint.h>
   6 #endif //WIN32
   7
   8 #define MT_BUFFER_NUM 10
   9 #define MT_LEN 624
  10
  11
  12 void mt_init();
  13 uint32_t mt_trandom();
  14 static int32_t trandom(uint32_t max=2147483647LU)
  15         {
  16         if(max<=1)return 0;
  17         uint32_t seed=mt_trandom();
  18         seed=seed%2147483647LU;
  19         seed=seed/((2147483647LU/max)+1);
  20
  21         return((int32_t)seed);
  22         }
  23 static int32_t loadtrandom(uint32_t max=2147483647LU)
  24         {
  25         uint32_t seed=mt_trandom();
  26         seed=seed%max;
  27
  28         return((int32_t)seed);
  29         }
  30 void push_trandom_uniform_seed(uint32_t newseed);
  31 void push_trandom_double_seed(uint32_t newseed1,uint32_t newseed2);
  32 void push_trandom_triple_seed(uint32_t newseed1,uint32_t newseed2,uint32_t newseed3);
  33 void pop_trandom_uniform_seed();
  34 void trandom_twist();
  35
  36 void r_num();
  37 int32_t basic_random(int32_t max=2147483647);
  38
  39
  40 #endif