From b471e74ef8befe5230a8cf577d1f6e6f487d41f4 Mon Sep 17 00:00:00 2001
From: Raj Bhattacharjea <raj.b@gatech.edu>
Date: Thu, 1 Nov 2007 14:59:00 -0400
Subject: [PATCH] Fixed randomvariable memory bug that caused a segfault

---
 src/core/random-variable.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/core/random-variable.cc b/src/core/random-variable.cc
index c44d9ead2..2190b90e1 100644
--- a/src/core/random-variable.cc
+++ b/src/core/random-variable.cc
@@ -77,8 +77,12 @@ RandomVariable::RandomVariable()
 }
 
 RandomVariable::RandomVariable(const RandomVariable& r)
+  :m_generator(0)
 {
-  m_generator = new RngStream(*r.m_generator);
+  if(r.m_generator)
+  {
+    m_generator = new RngStream(*r.m_generator);
+  }
 }
 
 RandomVariable::~RandomVariable()