[swift-evolution] [Accepted with modifications] SE-0045: Add scan, prefix(while:), drop(while:), and unfold to the stdlib

[Chris Lattner]

> On May 6, 2016, at 8:54 AM, David Hart <david at hartbit.com> wrote:
> 
> Chris, as many people seem to be currently in favour of renaming reduce to fold to support unfold, should be write a proposal, or can the modification be accepted with less formality?

We would *definitely* have to have a full review period to rename “reduce”.  We specifically considered whether to go with “reduce” or “fold”, and chose reduce.  

-Chris
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