#include <stdio.h>
 
int func(int a, int b)
{
      return a+b;
}
     
void main(void)
{
      int a = (int)func;
 
      printf("%d\n", func(3,4));
      printf("%d\n",                 );
}

#include <stdio.h>

int func(int a, int b)
{
	return a+b;
}

typedef int(*FP)(int, int);

void main(void)
{
	int a = (int)func;

	printf("%d\n", func(3,4) );
	printf("%d\n", ((FP)a)(3,4));
//	printf("%d\n", ((int (*)(int, int))a)(3, 4));
}