C & Internal: Fix inconsistencies

Author: frothga

N2A/src/gov/sandia/n2a/backend/c/runtime/holder.tcc

@@ -2157,6 +2157,14 @@ convertDate (const String & field, T defaultValue)
                 }
                 valid = year > 12  &&  month <= 12;
             }
+
+            // Until we have better hints from user, assume 2-digit year should have century offset.
+            // TODO: fix Y2K bug ...
+            if (year < 100)
+            {
+                if (year > 50) year += 1900;
+                else           year += 2000;
+            }
         }
     }
 

N2A/src/gov/sandia/n2a/language/AccessElement.java

@@ -180,7 +180,7 @@ public Type eval (Instance instance)
             double row = ((Scalar) operands[1].eval (instance)).value;
             double column = 0;
             if (operands.length > 2) column = ((Scalar) operands[2].eval (instance)).value;
-            return new Scalar (A.get (row, column, Matrix.INTERPOLATE));  // This access function does bounds check.
+            return new Scalar (A.get (row, column, Matrix.ZEROS));  // This access function does bounds check.
         }
         catch (ClassCastException e)
         {

N2A/src/gov/sandia/n2a/language/function/Input.java

@@ -561,8 +561,19 @@ else if (dateString.contains ("-"))  // Other parts of date/time are present
         }
         else if (dateString.contains ("/"))  // Conventional date
         {
-            // TODO: add keyword parameter for correct date format, such as "mdy" or "ymd".
-            format = new SimpleDateFormat ("MM/dd/yyyy");
+            String pieces[] = dateString.split ("/");
+            if (pieces.length == 3)
+            {
+                if (pieces[2].length () > 2)
+                {
+                    format = new SimpleDateFormat ("MM/dd/yyyy");
+                }
+                else
+                {
+                    // TODO: add keyword parameter for correct date format, such as "mdy" or "ymd".
+                    format = new SimpleDateFormat ("MM/dd/yy");
+                }
+            }
         }
         if (format != null)
         {

N2A/src/gov/sandia/n2a/language/type/Matrix.java

@@ -57,10 +57,10 @@ public double get (int row)
         return get (row, 0);
     }
 
-    public static final int REPLICATE   = 0;  // truncates coordinates; a read out of bounds returns nearest element
-    public static final int ZEROS       = 1;  // truncates coordinates; a read out of bounds returns zero
+    public static final int REPLICATE   = 0;  // truncates coordinates; an out-of-bounds read returns nearest element
+    public static final int ZEROS       = 1;  // truncates coordinates; an out-of-bounds read returns zero
     public static final int UNITMAP     = 2;  // applies offset and scaling for unitmap()
-    public static final int INTERPOLATE = 3;  // interpolates non-integer coordinates; a read out of bounds extrapolates nearest elements
+    public static final int INTERPOLATE = 3;  // interpolates non-integer coordinates; an out-of-bounds read extrapolates nearest elements
 
     public double get (double row, double column, int mode)
     {