Changeset 2229:4dbb6dd2dd4b in lemon-0.x for test/test_tools.h

Timestamp:

10/02/06 18:11:00 (18 years ago)

Author:

Balazs Dezso

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@2969

Message:

Mersenne Twister random number generator

The code is based on the official MT19937 implementation
It is fully rewritten:

​http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html

todo: fixing copyright information

File:

• test/test_tools.h (modified) (2 diffs)

test/test_tools.h

@@ -28 +28 @@
 #include <lemon/concept_check.h>
 #include <lemon/concept/graph.h>
+
+#include <lemon/random.h>
 
 using namespace lemon;
@@ -177 +179 @@
 }
 
-int _urandom_init() {
-  int seed = time(0);
-  srand(seed);
-  return seed;
-}
-
 int urandom(int n) {
-  static int seed = _urandom_init();
-  ignore_unused_variable_warning(seed);
-  return (int)(rand() / (1.0 + RAND_MAX) * n);
+  return rnd.getInt(n);
 }