ENH: allow use of FixedList<label,N> for bitSet construct/set/unset

- allows direct 'hashing' of fixed lists. Eg, triFace

applications/test/bitSet1/Test-bitSet1.C

@@ -73,6 +73,20 @@ int main(int argc, char *argv[])
     bitSet set2(100, { -1, 10, 25, 45});
     Info<<"bitSet(label, labels): "; report(set2, true);
 
+    {
+        FixedList<label, 4> locs({ -1, 3, 4, 12});
+
+        bitSet set3a(20, locs);
+        Info<<"bitSet(FixedList<label>): "; report(set3a, true);
+
+        bitSet set3b(locs);
+        Info<<"bitSet(FixedList<label>): "; report(set3b, true);
+
+        set3b.unset(FixedList<label, 3>({ 1, 2, 3}));
+
+        Info<<"bitSet unset(FixedList<label>): "; report(set3b, true);
+    }
+
     Info<< "End\n" << endl;
 
     return 0;

src/OpenFOAM/containers/Bits/bitSet/bitSet.H

@@ -164,6 +164,11 @@ public:
         //- subsequently add specified locations as 1.
         inline bitSet(const label n, const labelUIndList& locations);
 
+        //- Construct with given size with all bits set to 0,
+        //- subsequently add specified locations as 1.
+        template<unsigned N>
+        bitSet(const label n, const FixedList<label, N>& locations);
+
         //- Construct with given size with all bits set to 0,
         //- subsequently add specified locations as 1.
         inline bitSet(const label n, std::initializer_list<label> locations);
@@ -176,6 +181,11 @@ public:
         //- and populate with specified locations as 1.
         inline explicit bitSet(const labelUIndList& locations);
 
+        //- Construct with automatic sizing (filled with 0),
+        //- and populate with specified locations as 1.
+        template<unsigned N>
+        explicit bitSet(const FixedList<label, N>& locations);
+
         //- Clone
         inline autoPtr<bitSet> clone() const;
 
@@ -366,6 +376,13 @@ public:
         //  \return number of locations changed
         inline label set(const labelUIndList& locations);
 
+        //- Set the listed locations to true.
+        //  Does auto-vivify for non-existent entries.
+        //
+        //  \return number of locations changed
+        template<unsigned N>
+        label set(const FixedList<label, N>& locations);
+
         //- Unset the locations listed by the iterator range,
         //- never auto-vivify entries.
         //
@@ -383,6 +400,12 @@ public:
         //  \return number of locations changed
         inline label unset(const labelUIndList& locations);
 
+        //- Unset the listed locations, never auto-vivifies.
+        //
+        //  \return number of locations changed
+        template<unsigned N>
+        label unset(const FixedList<label, N>& locations);
+
 
     // Access helpers
 

src/OpenFOAM/containers/Bits/bitSet/bitSetTemplates.C

@@ -24,6 +24,29 @@ License
 \*---------------------------------------------------------------------------*/
 
 #include <algorithm>
+#include "FixedList.H"
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<unsigned N>
+Foam::bitSet::bitSet(const label n, const FixedList<label, N>& locations)
+:
+    bitSet(n)
+{
+
+    setMany(locations.begin(), locations.end());
+}
+
+
+template<unsigned N>
+Foam::bitSet::bitSet(const FixedList<label, N>& locations)
+:
+    bitSet()
+{
+
+    setMany(locations.begin(), locations.end());
+}
+
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
@@ -70,4 +93,18 @@ Foam::label Foam::bitSet::unset(InputIter first, InputIter last)
 }
 
 
+template<unsigned N>
+Foam::label Foam::bitSet::set(const FixedList<label, N>& locations)
+{
+    return setMany(locations.begin(), locations.end());
+}
+
+
+template<unsigned N>
+Foam::label Foam::bitSet::unset(const FixedList<label, N>& locations)
+{
+    return unset(locations.begin(), locations.end());
+}
+
+
 // ************************************************************************* //