Blender Git Loki

Reduce wasted space in Function class

This is achieved by storing strings in a single buffer instead
of using `std::string`, which does small object optimization
for every string individually. This optimization can be done
because all strings are known when the function is build and
don't change later on.

implement == operator for StringRef

construct StringRefNull from pointer and length

Merge branch 'master' into functions

Merge branch 'master' into functions

better cross platform exponent computation

more assertions in ArrayLookup

create ArrayRef from std::vector and std::array

cleanup SmallMap

ArrayRef constructor for SmallSet

correct small object optimization for sets and maps

improve SmallStack class

more efficient small vector extend

fix memory leaks in unit tests

remove unused StringCollection

cleanup ScopedTimer

Merge branch 'master' into functions

support for caching auto vectorized functions

equality operator for functions

smallmap: lookup or insert using key function