From 574ae448764bfc63258cf1eb918b2aea34dd8d4f Mon Sep 17 00:00:00 2001
From: Christoph Ruegg <git@cdrnet.ch>
Date: Sun, 14 Apr 2013 13:15:02 +0200
Subject: [PATCH] Fix bad range check in Xor-shift pRNG

---
 src/Numerics/Random/Xorshift.cs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/Numerics/Random/Xorshift.cs b/src/Numerics/Random/Xorshift.cs
index 18720219..b21fbda0 100644
--- a/src/Numerics/Random/Xorshift.cs
+++ b/src/Numerics/Random/Xorshift.cs
@@ -27,6 +27,9 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 // </copyright>
+
+using MathNet.Numerics.Properties;
+
 namespace MathNet.Numerics.Random
 {
     using System;
@@ -187,9 +190,9 @@ namespace MathNet.Numerics.Random
                 seed = 1;
             }
 
-            if (a > c)
+            if (a <= c)
             {
-                throw new ArgumentException("a must be less than c", "a");
+                throw new ArgumentException(string.Format(Resources.ArgumentOutOfRangeGreater, "a", "c"), "a");
             }
 
             _x = (uint)seed;