[Mono-bugs] [Bug 25171] New - mcs doesn't catch usage of uninitialised variable

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Changed by detlev@die-offenbachs.de.

http://bugzilla.ximian.com/show_bug.cgi?id=25171

--- shadow/25171	Thu May 23 08:00:04 2002
+++ shadow/25171.tmp.13683	Thu May 23 08:00:04 2002
@@ -0,0 +1,67 @@
+Bug#: 25171
+Product: Mono/MCS
+Version: unspecified
+OS: 
+OS Details: SuSE 8.0
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Misc
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: detlev@die-offenbachs.de               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: mcs doesn't catch usage of uninitialised variable
+
+mcs v0.11 (CVS of May, 21st) doesn't flag the usage of an uninitialised
+variable as an error. The example was taken from "Programming C#".
+
+The code is as follows.
+---------------------------------------------
+using System;
+
+public struct Location {
+  public Location(int xCoordinate, int yCoordinate) {
+    xVal = xCoordinate;
+    yVal = yCoordinate;
+  }
+
+  public int x {
+    get {
+      return xVal;
+    }
+    set {
+      xVal = value;
+    }
+  }
+
+  public int y {
+    get {
+      return yVal;
+    }
+    set {
+      yVal = value;
+    }
+  }
+
+  public override string ToString() {
+    return (String.Format("{0}, {1}", xVal, yVal));
+  }
+
+  public int xVal;
+  public int yVal;
+}
+
+public class Tester {
+
+  static void Main() {
+    Location loc1;      // no call to the constructor
+    loc1.xVal = 75;     // initialize the members
+//    loc1.yVal = 225;
+    Console.WriteLine(loc1);        // <--- error
+  }
+}
+------------------------------------------------------------