Can I separate creation and usage locations of compile-time strategies?

Question

#include 
#include 
#include 
#include 

using namespace std;

struct SubAlgorithm1 { void operator ()          


        

Answer 1

You should use an interface, with both SubAlgorithm1 and SubAlgorithm2 (you'll need better names than that) implementing the interface. The create an object of either class depending on runtime_flag.