function_ptr_return_function_ptr

function_ptr_return_function_ptr.c

#include <stdio.h>

int a(int x,int y){
    return 1;
}

double b(int x, int y){
    return 1.5;
}

void *function_factory(char arg) {
    if (arg=='a') return &a;
    if (arg=='b') return &b;
}

int main() {
    int (*a2)(int, int) = function_factory('a');
    double (*b2)(int, int) = function_factory('a');
    printf("a(1, 2) = %d\n", a2(1, 2));
    printf("b(1, 2) = %d\n", b2(1, 2));
    return 0;
}