Each header "foo" file should have the following:

• src/foo.cpp
• R/foo.R

Also add tests if possible, though they are not necessary

• test/simple_foo.R
• algorithm
• arith
• array
• blas
• data
• defines (library.py)
• device
• features
• graphics
• image
• index
• lapack
• signal
• statistics
• util
• version (merge with util)
• vision

C++ only headers that are not being ported

• exception.h (ported the necessary C function to util.py)
• complex.h
• dim4.hpp
• gfor (are there any necessary bits??)
• constants