From c6e9b323f513f38624e23b47b49de01b675c0776 Mon Sep 17 00:00:00 2001
From: Mark Olesen <Mark.Olesen@Germany>
Date: Tue, 27 Jan 2009 21:55:03 +0100
Subject: [PATCH] added HashSet::operator[]() const

- can use the same syntax for boolList, PackedBoolList and labelHashSet
    if (myHashedSet[x]) ...
    if (myBoolList[x]) ...
    if (myPackedList[x]) ...
---
 applications/test/HashSet/hashSetTest.C       | 27 +++++++++++++++++++
 .../containers/HashTables/HashSet/HashSet.C   |  7 +++++
 .../containers/HashTables/HashSet/HashSet.H   |  4 ++-
 3 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/applications/test/HashSet/hashSetTest.C b/applications/test/HashSet/hashSetTest.C
index 9625b2e0dc..21e1276604 100644
--- a/applications/test/HashSet/hashSetTest.C
+++ b/applications/test/HashSet/hashSetTest.C
@@ -111,6 +111,33 @@ int main(int argc, char *argv[])
     Info<< "setD : " << setD << endl;
     Info<< "setB ^ setC ^ setD : " << (setB ^ setC ^ setD) << endl;
 
+    // test operator[]
+
+    Info<< "setD : " << setD << endl;
+    if (setD[0])
+    {
+        Info<< "setD has 0" << endl;
+    }
+    else
+    {
+        Info<< "setD has no 0" << endl;
+    }
+
+
+    if (setD[11])
+    {
+        Info<< "setD has 11" << endl;
+    }
+    else
+    {
+        Info<< "setD has no 0" << endl;
+    }
+
+    Info<< "setD : " << setD << endl;
+
+    // this doesn't work (yet?)
+    // setD[12] = true;
+
     return 0;
 }
 
diff --git a/src/OpenFOAM/containers/HashTables/HashSet/HashSet.C b/src/OpenFOAM/containers/HashTables/HashSet/HashSet.C
index 2136916780..6bf84e0c55 100644
--- a/src/OpenFOAM/containers/HashTables/HashSet/HashSet.C
+++ b/src/OpenFOAM/containers/HashTables/HashSet/HashSet.C
@@ -51,6 +51,13 @@ Foam::HashSet<Key, Hash>::HashSet(const HashTable<AnyType, Key, Hash>& ht)
 
 // * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //
 
+template<class Key, class Hash>
+inline bool Foam::HashSet<Key, Hash>::operator[](const Key& key) const
+{
+    return found(key);
+}
+
+
 template<class Key, class Hash>
 bool Foam::HashSet<Key, Hash>::operator==(const HashSet<Key, Hash>& rhs) const
 {
diff --git a/src/OpenFOAM/containers/HashTables/HashSet/HashSet.H b/src/OpenFOAM/containers/HashTables/HashSet/HashSet.H
index fbe0baf785..9a4c5951be 100644
--- a/src/OpenFOAM/containers/HashTables/HashSet/HashSet.H
+++ b/src/OpenFOAM/containers/HashTables/HashSet/HashSet.H
@@ -133,9 +133,11 @@ public:
             return HashTable<nil, Key, Hash>::insert(key, nil());
         }
 
-
     // Member Operators
 
+        //- Return true if the entry exists, same as found()
+        inline bool operator[](const Key&) const;
+
         //- Equality. Two hashtables are equal when their contents are equal.
         //  Independent of table size or order.
         bool operator==(const HashSet<Key, Hash>&) const;