c++ - Array of heteregenous function pointers in C -

i have array of function pointers, each pointing differ function. function differ in prototype, , number of parameters.

i looking following similar functionality in c/c++.

the following code not compilable in c

#include <stdio.h>  typedef int (*func)(int a,int b);  int func_one(int a) {    printf("\n in function 1 1 parameter %d \n",a);    return 1; }  int func_two(int a,int b) {    printf("\n in function 2 2 parameter %d %d \n",a,b);    return 2; }  typedef struct{ func fnc; enum type{ one,two} type_info; }str;  int main() { str str[2]; int ret; int i;  str[0].fnc = func_one; str[0].type_info = one;  str[1].fnc = func_two; str[1].type_info = two;   for(i=1;i>=0;--i) {    if(str[i].type_info == one)       ret = str[i].fnc(10);    else if(str[i].type_info == two)       ret = (str[i].fnc)(10,20);    else       perror("error in implementation \n");         printf("\n return value %d \n",ret);      } return 0; } 

in c, safe cast 1 function-pointer type (as long cast in order call it), can declare sort of "generic function-pointer type":

typedef void (*genfunc)(void); 

and cast needed:

genfunc tmp = (genfunc)&func_two; // cast generic pointer  func 2 = (func)tmp; // note: have cast back! two(0, 1);