reduce -> fold?

[Walter Bright via Digitalmars-d]

On 2/3/2016 8:39 AM, Andrei Alexandrescu wrote:
> My ambitions were lower :o). I was thinking of supporting any operation, not
> only summation.

Erik Meijer lists a lot of interesting things that can be done with fold:

https://channel9.msdn.com/Series/C9-Lectures-Erik-Meijer-Functional-Programming-Fundamentals/C9-Lectures-Dr-Erik-Meijer-Functional-Programming-Fundamentals-Chapter-7-of-13