Array Of Functions

[Docko412]

I would like to know if their is a way to make an array of functions.
like this

array[] = {function1, function2, function 3}
function1;
would there be a way, or is it even possible?

[helios]

//function pointer typedef:
typedef void (*f_t)();

void f1(){
    std::cout <<"f1()\n";
}

void f2(){
    std::cout <<"f2()\n";
}

void f3(){
    std::cout <<"f3()\n";
}

int main(){
    f_t array[]={ f1, f2, f3 };
    for (int a=0;a<3;a++)
        array[a]();
}

[Docko412]

Is that the only way, oh well, i guess that'll work.

it won't compile correctly.

[Disch]

On an unrelated note, why do some people capitalize every word like that?

This isn't the first time I've seen it, and every time I see it, I'm baffled. It's goofy looking, and must be very unnatural to type.

[Docko412]

you know i dont know i get it from when i used to be a video game modder.
i used to capital the letters like that when i'd print stuff out on the screen or else it'd look weird.

[Galik]

helios' way compiled and ran fine for me.

If you have a compiler that supports the new C++ standard (C++11) then you can use the std::function class. Here is an example using std::function and std::vector instead of function pointers and arrays:

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#include <iostream> #include <vector> #include <functional> void f1(){ std::cout <<"f1()\n"; } void f2(){ std::cout <<"f2()\n"; } void f3(){ std::cout <<"f3()\n"; } int main() { std::vector<std::function<void()> > funcs; funcs.push_back(f1); funcs.push_back(f2); funcs.push_back(f3); for(size_t f = 0; f < funcs.size(); ++f) funcs[f](); return 0; }

f1() f2() f3()

[zb0S216C]

Here's how to declare an array of function pointers:

int Function( int Arg )
{
    // ...
}

int( *Ptr[3] )( int );

Ptr[0] = &Function;

// Call the function:
Ptr[0]( 10 );

_Wazzak