Function check_histogram

test/rand.cpp:40–55

}

template<typename Scalar> void check_histogram(Scalar x, Scalar y, int bins)
{
  Array<int,1,Dynamic> hist(bins);
  hist.fill(0);
  int f = 100000;
  int n = bins*f;
  int64 range = int64(y)-int64(x);
  int divisor = int((range+1)/bins);
  assert(((range+1)%bins)==0);
  for(int k=0; k<n; ++k)
  {
    Scalar r = check_in_range(x,y);
    hist( int((int64(r)-int64(x))/divisor) )++;
  }
  VERIFY( (((hist.cast<double>()/double(f))-1.0).abs()<0.02).all() );
}

void test_rand()
{