Write the prototype for a function that takes an array of exactly 16 integers

Question

One of the interview questions asked me to \"write the prototype for a C function that takes an array of exactly 16 integers\" and I was wondering what it could be? Maybe a

Answer 1

& is necessary in C++:

void foo(int (&a)[16]); // & is necessary. (in C++)

Note : & is necessary, otherwise you can pass array of any size!

---

For C:

void foo(int (*a)[16]) //one way
{
}

typedef int (*IntArr16)[16]; //other way
void bar(IntArr16 a)
{
}

int main(void) 
{
        int a[16];
        foo(&a); //call like this - otherwise you'll get warning!
        bar(&a); //call like this - otherwise you'll get warning!
        return 0;
}

Demo : http://www.ideone.com/fWva6