From b57ddd4e292cb3a2ef8d2ded445c5b4b79f7c864 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Sat, 5 May 2012 16:36:20 +0000
Subject: [Support] Add sys::Process::GetRandomNumber().  - Primitive API, but
 we rarely have need for random numbers.

llvm-svn: 156237
---
 llvm/lib/Support/Process.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'llvm/lib/Support/Process.cpp')

diff --git a/llvm/lib/Support/Process.cpp b/llvm/lib/Support/Process.cpp
index 88ca7c3f220..c65cb454046 100644
--- a/llvm/lib/Support/Process.cpp
+++ b/llvm/lib/Support/Process.cpp
@@ -22,6 +22,15 @@ using namespace sys;
 //===          independent code.
 //===----------------------------------------------------------------------===//
 
+unsigned llvm::sys::Process::GetRandomNumber() {
+#if defined(HAVE_ARC4RANDOM)
+  return arc4random();
+#else
+  static int x = (::srand(::time(NULL)), 0);
+  return rand();
+#endif
+}
+
 }
 
 // Include the platform-specific parts of this class.
-- 
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