Changeset 8805

Timestamp:

10/15/12 09:35:16 (12 years ago)

Author:

mkommend

Message:

#1968: Added initialization code for the RNG in the ALGLIB sources.

File:

• trunk/sources/HeuristicLab.ExtLibs/HeuristicLab.ALGLIB/3.6.0/ALGLIB-3.6.0/ap.cs (modified) (3 diffs)

trunk/sources/HeuristicLab.ExtLibs/HeuristicLab.ALGLIB/3.6.0/ALGLIB-3.6.0/ap.cs

@@ -493 +493 @@
     //public static System.Random RndObject = new System.Random(System.DateTime.Now.Millisecond);
     [ThreadStatic] //mkommend: added thread static attribute to RNG to have a separate instance per thread and allow modification of the seed
-    public static System.Random rndobject = new System.Random(System.DateTime.Now.Millisecond + 1000 * System.DateTime.Now.Second + 60 * 1000 * System.DateTime.Now.Minute);
+    public static System.Random rndobject;
 
     public const double machineepsilon = 5E-16;
@@ -505 +505 @@
     public static double randomreal() {
       double r = 0;
+      if (rndobject == null) rndobject = new System.Random(System.DateTime.Now.Millisecond + 1000 * System.DateTime.Now.Second + 60 * 1000 * System.DateTime.Now.Minute);
       lock (rndobject) { r = rndobject.NextDouble(); }
       return r;
@@ -510 +511 @@
     public static int randominteger(int N) {
       int r = 0;
+      if (rndobject == null) rndobject = new System.Random(System.DateTime.Now.Millisecond + 1000 * System.DateTime.Now.Second + 60 * 1000 * System.DateTime.Now.Minute);
       lock (rndobject) { r = rndobject.Next(N); }
       return r;