C++ utilities, includes components like:

• array_view, initially started from Łukasz Mendakiewicz's C++ proposal N4512 but since then I've rewritten it almost completely based on
  • the comments and critiques on the Google ISO C++ forum
  • boost::multi_array
  • N4222
  • Eric Niebler's A Slice of Python in C++ article
  • and my taste, experience with other languages (MatLab, K, Q, Julia)
• multi_array, which is the container version of the array_view
• STL abbreviations and helper macros (abbrev.h)
• random_access_iterator_pair (lightweight, OutputIterator version of the zip feature from boost::range or Niebler's range-v3, works for simultaneously sorting two containers
• Implementation of Python's range (for C++ range-based loops)
• sort, sortperm (like in MatLab/Julia) for array_view
• static_const, Niebler's customization point solution, copied from his range-v3 lib

This is an unstable work in progress, developing while porting scikit-learn's Random Forest