Random number

include: co/random.h.


The Random class is a very fast pseudo-random number generator, which can generate integers between 1 and 2G-2 continuously and without repetition.


explicit Random(uint32_t seed);
  • The default constructor uses 1 as the seed number, and the second constructor uses the parameter seed as the seed number.


uint32_t next();
  • Returns the next pseudo-random number, not thread safe. Once the seed number is determined, the random sequence generated by calling next() is completely determined.

  • Example

Random r(7);
int n = r.next();