In http://dlang.org/spec/attribute.html, "It must be a positive power of 2." possibly should be changed to "It must be a nonnegative power of 2.". (As 1 is 2^0 and 0 is not positive.)
@RazvanN7 created dlang/dlang.org pull request #3341 "Fix Issue 17514 - "positive" -> "nonnegative"" fixing this issue: - Fix Issue 17514 - "positive" -> "nonnegative" https://github.com/dlang/dlang.org/pull/3341
dlang/dlang.org pull request #3341 "Fix Issue 17514 - "positive" -> "nonnegative"" was merged into master: - 004c254d31e10dff75fb83d6eace0dc57e205bbe by Razvan Nitu: Fix Issue 17514 - "positive" -> "nonnegative" https://github.com/dlang/dlang.org/pull/3341