C typedef

#include <stdio.h>

typedef int (*funcptr)(int,int);
funcptr fp1,fp2;

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

int minus(int a,int b)
{
    return a-b;
}

int main(void)
{
    fp1=plus;
    fp2=minus;
    int a=3,b=2;
    printf("plus(a,b)=%d",fp1(a,b));
    printf("minus(a,b)=%d",fp2(a,b));
    return 0;
}

typedef int (*funcptr)(int,int);
int function(int,int);