Discussion on vtkSmpTools improvement

Development
16

Hello everyone,

I don’t know how doable it is, but I think it would be nice to be able to use SMP tools on iterators / ranges. This is especially useful for containers that are not indexed like arrays (std::map or std::set for instance).

Here’s an example on how it could work with iterators in the worker:

template<class IteratorT>
void operator()(IteratorT begin, IteratorT end) 
{
  for(IteratorT it = begin; it != end; ++it)
  {
    // Do stuff
  }
}

This could be called using vtkSMPTools::For(container.begin(), container.end(), worker);

With ranges (maybe more optional, as iterators could do the same thing). Note that the range would likely be a proxy range that internally uses iterators from the input container:

template<class RangeT>
void operator()(RangeT& range) 
{
  for(auto& element : range)
  {
    // Do stuff
  }
}

This could be called using vtkSMPTools::For(container, worker);

4 Likes