Add segmentsOverlap method to jdk1.4 Arrays class

peterdettman · peterdettman · commit 0b9e1413a3f4 · 2025-05-29T15:19:11.000+07:00
diff --git a/core/src/main/jdk1.4/org/bouncycastle/util/Arrays.java b/core/src/main/jdk1.4/org/bouncycastle/util/Arrays.java
@@ -1145,6 +1145,14 @@ public static int hashCode(Object[] data)
         return hc;
     }
 
+    public static boolean segmentsOverlap(int aOff, int aLen, int bOff, int bLen)
+    {
+        return aLen > 0
+            && bLen > 0
+            && aOff - bOff < bLen
+            && bOff - aOff < aLen;
+    }
+
     public static void validateSegment(byte[] buf, int off, int len)
     {
         if (buf == null)

Original file line number	Diff line number	Diff line change
`@@ -1145,6 +1145,14 @@ public static int hashCode(Object[] data)`
`1145`	`1145`	`return hc;`
`1146`	`1146`	`}`
`1147`	`1147`
	`1148`	`+ public static boolean segmentsOverlap(int aOff, int aLen, int bOff, int bLen)`
	`1149`	`+ {`
	`1150`	`+ return aLen > 0`
	`1151`	`+ && bLen > 0`
	`1152`	`+ && aOff - bOff < bLen`
	`1153`	`+ && bOff - aOff < aLen;`
	`1154`	`+ }`
	`1155`	`+`
`1148`	`1156`	`public static void validateSegment(byte[] buf, int off, int len)`
`1149`	`1157`	`{`
`1150`	`1158`	`if (buf == null)`