Function randomPermutationVector

test/main.h:597–610

void randomPermutationVector(PermutationVectorType& v, Index size);
template<typename PermutationVectorType>
void randomPermutationVector(PermutationVectorType& v, Index size)
{
  typedef typename PermutationVectorType::Scalar Scalar;
  v.resize(size);
  for(Index i = 0; i < size; ++i) v(i) = Scalar(i);
  if(size == 1) return;
  for(Index n = 0; n < 3 * size; ++n)
  {
    Index i = internal::random<Index>(0, size-1);
    Index j;
    do j = internal::random<Index>(0, size-1); while(j==i);
    std::swap(v(i), v(j));
  }
}

template<typename T> bool isNotNaN(const T& x)
{