// clang -fvisibility=hidden -flto -fno-sanitize-trap=all -fsanitize=cfi-icall clang.c
#include <stdio.h>

void admin_stuff();
void user_stuff();

int main()
{
    void (*fp[])() = {&admin_stuff, &user_stuff};
    int choice;
    printf("Enter choice:\n0) Admin\n1) User\n");
    scanf("%d", &choice);
    (*fp[choice])();
    return 0;
}

void admin_stuff()
{
    printf("admin stuff\n");
}

void user_stuff()
{
    printf("user stuff\n");
}