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copied!<pre><code>#include <functional> #include <iostream> #include <string> #include <map> class api { // maps containing the different function pointers typedef void(*voidfuncptr)(); typedef int(*stringcrintptr)(std::string, const int&); std::map<std::string, voidfuncptr> voida; std::map<std::string, stringcrintptr> stringcrint; public: // api temp class // given an api and a name, it converts to a function pointer // depending on parameters used class apitemp { const std::string n; const api* p; public: apitemp(const std::string& name, const api* parent) : n(name), p(parent) {} operator voidfuncptr() { return p->voida.find(n)->second; } operator stringcrintptr() { return p->stringcrint.find(n)->second; } }; // insertion of new functions into appropriate maps void insert(const std::string& name, voidfuncptr ptr) { voida[name]=ptr; } void insert(const std::string& name, stringcrintptr ptr) { stringcrint[name]=ptr; } // operator[] for the name gets halfway to the right function apitemp operator[](std::string n) const { return apitemp(n, this); } }; </code></pre> <p>Usage: </p> <pre><code>api myMap; int hello_world(std::string name, const int & number ) { name += "!"; std::cout << "Hello, " << name << std::endl; return number; } int main() { myMap.insert("my_method_hello", &hello_world ); int a = myMap["my_method_hello"]("Tim", 25); } </code></pre> <p><a href="http://ideone.com/SXAPu" rel="nofollow">http://ideone.com/SXAPu</a> Not very pretty. Better advice is to not do anything even remotely like whawtever it is you're trying to do.</p> <p>Note that this requires all functions with the same parameters to return the same type.</p>

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