Ali Cehrili on D Ranges at D Conference 2012

[Walter Bright]

Elements of containers (and pseudo-containers) are accessed by the range 
abstraction of D. D's InputRange, ForwardRange, BidirectionalRange, 
RandomAccessRange, and OutputRange are sufficient to connect many types of 
containers and many types of algorithms.

Most modules of Phobos, including std.range, provide algorithms and ranges that 
make programs consistent, fast, and easy to maintain.

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