[Issue 10042] std.range.inits and tails

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10042



--- Comment #1 from bearophile_hugs at eml.cc 2013-10-16 15:58:15 PDT ---
Another usage example:

sequence!q{n}.inits.map!sum.take(20).writeln;

Should generate the the triangle number sequence (http://oeis.org/A000217 ),
with an extra leading zero:

[0, 0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153,
171]

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