welcome to pointer hell

#include <stdio.h>

void *(*_fn)(void *, ...);
#define _fnptr(...) _fn(__VA_ARGS__)

void *_print2(void *a, char *b) {
        printf("%s %s\n", (char *)a, b);
}
void *_print1(void *a) {
        printf("%s\n", (char *)a);
}

int main(int argc, char **argv) {
        _fn = *_print1;
        _fnptr((void *)"bla1");
        _fn = *_print2;
        _fnptr((void *)"bla2", "bli2");
        return 0;
}