D-Programming-Language/phobos — pull request #2619 by tom-tan (2014-10-17 08:07:53+00:00)
Title: Mark std.uni.replicateBits as safe, pure, nothrow and nogc

It does not contain any unsafe, impure, throwable and GC-related operations.
I did not mark a unittest for it as nothrow and nogc because `std.algorithm.reduce` is throwable and thus may invoke GC.