[Lemon-commits] deba: r3480 - in lemon/trunk: lemon test

[Lemon SVN]

Author: deba
Date: Thu Mar 20 17:25:47 2008
New Revision: 3480

Modified:
   lemon/trunk/lemon/random.h
   lemon/trunk/test/random_test.cc

Log:
Back porting commit 81563e019fa4



Modified: lemon/trunk/lemon/random.h
==============================================================================
--- lemon/trunk/lemon/random.h	(original)
+++ lemon/trunk/lemon/random.h	Thu Mar 20 17:25:47 2008
@@ -578,6 +578,26 @@
       return *this;
     }
 
+    /// \brief Seeding random sequence
+    ///
+    /// Seeding the random sequence. The current number type will be
+    /// converted to the architecture word type.
+    template <typename Number>
+    void seed(Number seed) { 
+      _random_bits::Initializer<Number, Word>::init(core, seed);
+    }
+
+    /// \brief Seeding random sequence
+    ///
+    /// Seeding the random sequence. The given range should contain
+    /// any number type and the numbers will be converted to the
+    /// architecture word type.
+    template <typename Iterator>
+    void seed(Iterator begin, Iterator end) { 
+      typedef typename std::iterator_traits<Iterator>::value_type Number;
+      _random_bits::Initializer<Number, Word>::init(core, begin, end);
+    }
+
     /// \brief Returns a random real number from the range [0, 1)
     ///
     /// It returns a random real number from the range [0, 1). The

Modified: lemon/trunk/test/random_test.cc
==============================================================================
--- lemon/trunk/test/random_test.cc	(original)
+++ lemon/trunk/test/random_test.cc	Thu Mar 20 17:25:47 2008
@@ -33,4 +33,9 @@
   a=rnd.gamma(4);
   //Does gamma work with integer k?
   a=rnd.gamma(4.0,0);
+
+  lemon::rnd.seed(100);
+  lemon::rnd.seed(seed_array, seed_array + 
+		  (sizeof(seed_array) / sizeof(seed_array[0])));
+  return 0;
 }