[all-commits] [llvm/llvm-project] f3b979: [libc++] Use ioctl when available to get random_de...

[Marek Kurdej via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: f3b979b65e9ff81b656d26d9f2a1c731301fd445
      https://github.com/llvm/llvm-project/commit/f3b979b65e9ff81b656d26d9f2a1c731301fd445
  Author: Marek Kurdej <marek.kurdej at gmail.com>
  Date:   2021-01-21 (Thu, 21 Jan 2021)

  Changed paths:
    M libcxx/src/random.cpp
    M libcxx/test/std/numerics/rand/rand.device/entropy.pass.cpp

  Log Message:
  -----------
  [libc++] Use ioctl when available to get random_device entropy.

Implemented the idea from D94571 to improve entropy on Linux.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D94953