From 7f49fe9feb174d34efc2a011bad79b38522a360b Mon Sep 17 00:00:00 2001
From: Dongdong Li <qqlddg@gmail.com>
Date: Thu, 8 Aug 2013 00:15:58 -0800
Subject: Intesim2 Integration Details: See Review 80001
 https://gpgpu-sim-code-review.appspot.com/80001/

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 16747]
---
 src/intersim2/random_utils.hpp | 61 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 src/intersim2/random_utils.hpp

(limited to 'src/intersim2/random_utils.hpp')

diff --git a/src/intersim2/random_utils.hpp b/src/intersim2/random_utils.hpp
new file mode 100644
index 0000000..1150b08
--- /dev/null
+++ b/src/intersim2/random_utils.hpp
@@ -0,0 +1,61 @@
+// $Id: random_utils.hpp 5188 2012-08-30 00:31:31Z dub $
+
+/*
+ Copyright (c) 2007-2012, Trustees of The Leland Stanford Junior University
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ Redistributions of source code must retain the above copyright notice, this 
+ list of conditions and the following disclaimer.
+ Redistributions in binary form must reproduce the above copyright notice, this
+ list of conditions and the following disclaimer in the documentation and/or
+ other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _RANDOM_UTILS_HPP_
+#define _RANDOM_UTILS_HPP_
+
+ // interface to Knuth's RANARRAY RNG
+void   ran_start(long seed);
+long   ran_next( );
+void   ranf_start(long seed);
+double ranf_next( );
+
+inline void RandomSeed( long seed ) {
+  ran_start( seed );
+  ranf_start( seed );
+}
+
+inline unsigned long RandomIntLong( ) {
+  return ran_next( );
+}
+
+// Returns a random integer in the range [0,max]
+inline int RandomInt( int max ) {
+  return ( ran_next( ) % (max+1) );
+}
+
+// Returns a random floating-point value in the rage [0,1]
+inline double RandomFloat(  ) {
+  return ranf_next( );
+}
+
+// Returns a random floating-point value in the rage [0,max]
+inline double RandomFloat( double max ) {
+  return ( ranf_next( ) * max );
+}
+
+#endif
-- 
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