id,summary,reporter,owner,description,type,status,priority,milestone,version,resolution,keywords,cc
27,Zero out an unboxed array,jbapple,,"For all of the unboxed types, 0 makes sense as a value, and can be represented by bytes with no bits set. Initializing a Vector someType using newWith, however, sets each group of bits or bytes one someType at a time. I suspect memset would be substantially faster.

I suggest, for unboxed types only, an initializer named something like newZero. This might work for Storable as well.

Because newWith is slower than I would like, I am using new rather than newWith and using [http://research.swtch.com/2008/03/using-uninitialized-memory-for-fun-and.html a trick] to make sure I don't actually use any uninitialized values.",enhancement,closed,minor,,0.6,fixed,,