I want a std::vector to contain some functions, and that more functions can be added to it in realtime. All the functions will have a prototype like this:
void name(SDL_Event *event);
I know how to make an array of functions, but how do I make a std::vector of functions? I've tried this:
std::vector<( *)( SDL_Event *)> functions;
std::vector<( *f)( SDL_Event *)> functions;
std::vector<void> functions;
std::vector<void*> functions;
But none of them worked. Please help
Try using a typedef:
typedef void (*SDLEventFunction)(SDL_Event *);
std::vector<SDLEventFunction> functions;
Try this:
std::vector<void ( *)( SDL_Event *)> functions;
If you like boost then then you could do it like this:
#include <boost/bind.hpp>
#include <boost/function.hpp>
#include <vector>
void f1(SDL_Event *event)
{
// ...
}
void f2(SDL_Event *event)
{
// ...
}
int main()
{
std::vector<boost::function<void(SDL_Event*)> > functions;
functions.push_back(boost::bind(&f1, _1));
functions.push_back(boost::bind(&f2, _1));
// invoke like this:
SDL_Event * event1 = 0; // you should probably use
// something better than 0 though..
functions[0](event1);
return 0;
}
