[PATCH] D41316: [libcxx] Allow random_device to be built optionally

[Marshall Clow via Phabricator via cfe-commits]

mclow.lists added a comment.

In https://reviews.llvm.org/D41316#1054968, @efriedma wrote:

> Yes, the standard says you're allowed to throw an exception from the random_device constructor, or use a PRNG with an arbitrary seed, or even just return zeros from operator(). But none of those behaviors are actually useful; the code will compile, but you won't get the expected randomness.  So I prefer this solution, even if it isn't strictly standard-compliant.


I'd very much prefer something standards-compliant.


Repository:
  rCXX libc++

https://reviews.llvm.org/D41316