Function drand

contents/IFS/code/cpp/IFS.cpp:25–27

Returns a random double in [0, 1)

// Returns a random double in [0, 1)
double drand() {
  return std::uniform_real_distribution<double>(0.0, 1.0)(rng());
}

// Returns a random integer in [0, numElems-1]
std::size_t randrange(std::size_t numElems) {