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

[Brad Smith via Phabricator via libcxx-commits]

brad updated this revision to Diff 316415.
brad added a comment.

Updated diff after moving header up to the top and removing the OpenBSD guard.


Repository:
  rG LLVM Github Monorepo

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

https://reviews.llvm.org/D94571

Files:
  libcxx/src/random.cpp


Index: libcxx/src/random.cpp
===================================================================
--- libcxx/src/random.cpp
+++ libcxx/src/random.cpp
@@ -13,6 +13,7 @@
 #define _CRT_RAND_S
 #endif // defined(_LIBCPP_USING_WIN32_RANDOM)
 
+#include "limits"
 #include "random"
 #include "system_error"
 
@@ -33,7 +34,6 @@
 #include <nacl/nacl_random.h>
 #endif
 
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 #if defined(_LIBCPP_USING_GETENTROPY)
@@ -172,7 +172,11 @@
 double
 random_device::entropy() const _NOEXCEPT
 {
+#ifdef __OpenBSD__
+    return std::numeric_limits<unsigned int>::digits;
+#else
     return 0;
+#endif
 }
 
 _LIBCPP_END_NAMESPACE_STD


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