The original example for pack has too much stuff going on. Replacing it with a slimmer version that makes it a bit more clear what the impact of pack is. In particular, I feel like the asserts for shapes are necessary to make it obvious.

Addressing comments to change [0][0] to [0, 0]

Was asked to have only one blank line. I assume this meant to split variables from asserts.

Changing indentation to tab from 5 spaces for b. Also, change the formatting for template parameter to remove parentheses.

Adding a space after std.range to pass Travis CI.

Trying to fix white space so that Travis CI passes.

Fixing white space on line 107

Removing extra line between blocks

Adding enums to avoid risk of GC allocation

Changing enums to static immutable because that is what Travis CI is telling me to do

[ndslice] Change pack example to something simpler