added eoFuncPtrStat, and appended various addTo member functions for more elegant definition of monitors, stats, checkpoints, etc

eo/src/utils/eoFuncPtrStat.h

@@ -0,0 +1,36 @@
+#ifndef eoFuncPtrStat_h
+#define eoFuncPtrStat_h
+
+#include <eoFunctorStore.h>
+#include <utils/eoStat.h>
+
+template <class EOT, class T>
+class eoFuncPtrStat : public eoStat<EOT, T>
+{
+public :
+    typedef T (*func_t)(const eoPop<EOT>&);
+
+
+    eoFuncPtrStat(func_t f, std::string _description = "func_ptr")
+        : eoStat<EOT, T>(T(), _description), func(f)
+        {}
+   
+    using eoStat<EOT, T>::value;
+     
+    void operator()(const eoPop<EOT>& pop) {
+        value() = func(pop);
+    }
+
+private:
+    func_t func;
+};
+
+template <class EOT, class T>
+eoFuncPtrStat<EOT, T>& makeFuncPtrStat( T (*func)(const eoPop<EOT>&), eoFunctorStore& store, std::string description = "func") {
+    return store.storeFunctor(
+        new eoFuncPtrStat<EOT, T>( func, description)
+        );
+}
+
+#endif
+