include/df/random.hpp

00001 #ifndef RAND_MAX
00002 #define RAND_MAX 0x7fffffff
00003 #endif
00004 
00005 class Random : virtual public SystemCode {
00006   _PROTECTED_:
00007     uint32 x[25];  //25 seed #s
00008     uint32 k;
00009   public:
00010     void srand(uint32);      //reseed random number sequence
00011     void randomize();        //reseed by system timer
00012     uint32 rand();           //return random # upto RAND_MAX
00013     uint32 random(uint32 x); //return random # upto x-1
00014     Random() {
00015       srand(0x12345678);
00016       k = 0;
00017     }
00018     double rand_float() {
00019       return ((double)rand() / 4294967296.0);
00020     }
00021 };
00022 

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