Week 01 Lectures (76)

Function Pointers (cont)

Can traverse a collection such as an array, applying the function to all values

void traverse(int len, int a[], int (*f)(int)){
    for(int i = 0; i < len; i++){
        a[i] = f(a[i]);
    }
}

int main(void){
    int a[3] = {1,2,3};
    traverse(3,a,square);
    traverse(3,a,timesTwo);
    return 0;
}