I got curious and after a little while I ended up with this ungodly mess and general mainentace nightmare:
main.cpp:
#include <map>
#include <iostream>
#include <sstream>
#include <functional>
#include <cstring>
typedef std::function<void(int)> func;
typedef std::map<std::string, func> FuncMap;
template <char* A, char* B, int C>
void runner(FuncMap funcs){
std::stringstream ss;
ss <<A <<B;
return funcs[ss.str()](C);
}
void ABC(int val) {
std::cout <<"Woo: " <<val <<"\n";
}
extern char a[]; //due to external linkage requirement
extern char b[];
int main(...) {
FuncMap funcs;
strcpy(a, "A");
strcpy(b, "B");
funcs["AB"] = std::bind(&ABC, std::placeholders::_1);
runner<a, b, 0>(funcs);
return 0;
}
vars.cpp:
char a[5] = {""};
char b[5] = {""};
So yes with enough force you can make c++ do something along the lines of what you want, but I really wouldn't recommend it.