Changeset 2145 for trunk/yat/random/random.h

Timestamp:

Jan 15, 2010, 8:36:06 PM (13 years ago)

Author:

Peter

Message:

improve compile error message in random_shuffle. refs #489

File:

• trunk/yat/random/random.h (modified) (3 diffs)

trunk/yat/random/random.h

@@ -6 +6 @@
 /*
   Copyright (C) 2005, 2006, 2007, 2008 Jari Häkkinen, Peter Johansson
-  Copyright (C) 2009 Peter Johansson
+  Copyright (C) 2009, 2010 Peter Johansson
 
   This file is part of the yat library, http://dev.thep.lu.se/yat
@@ -25 +25 @@
 
 #include "yat/statistics/Histogram.h"
+
+#include <boost/concept_check.hpp>
 
 #include <gsl/gsl_rng.h>
@@ -602 +604 @@
      random generator and thereby using the underlying RNG class,
      which is singleton.
+
+     RandomAccessIterator must be mutable
    */
   template<typename RandomAccessIterator>
   void random_shuffle(RandomAccessIterator first, RandomAccessIterator last)
   {
+    typedef RandomAccessIterator rai;
+    typedef boost::Mutable_RandomAccessIteratorConcept<rai> mric;
+    boost::function_requires<mric>();
     DiscreteUniform rnd;
     std::random_shuffle(first, last, rnd);