[libcxx-commits] [PATCH] D94571: [libcxx] random_device, for OpenBSD specify optimal entropy properties

Louis Dionne via Phabricator via libcxx-commits libcxx-commits at lists.llvm.org
Wed Jan 13 07:21:36 PST 2021


ldionne requested changes to this revision.
ldionne added inline comments.
This revision now requires changes to proceed.


================
Comment at: libcxx/src/random.cpp:37
+#ifdef __OpenBSD__
+#include <limits>
+#endif
----------------
You can include this unconditionally. Please include it alongside `"random"` and `"system_error"` above.


================
Comment at: libcxx/src/random.cpp:179
+#ifdef __OpenBSD__
+    return std::numeric_limits<unsigned int>::digits;
+#else
----------------
Couldn't we do a better job and use `ioctl` on Linuxes? See cppreference: https://en.cppreference.com/w/cpp/numeric/random/random_device/entropy


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D94571/new/

https://reviews.llvm.org/D94571



More information about the libcxx-commits mailing list