Declaring array of int

Question

Is there any difference between these two declarations?

int x[10];

vs.

int* x = new int[10];

I suppose th

Answer 1

If you want to size an array dynamically, e.g.:

void doSomething(int size)
{
    int x[size];               // does not compile
    int *z  = new int[size];
    //Do something interesting ...
    doMore(z, size);
}

then x will not compile in C++, so you have to use z. The good news is that you can now use z, in most cases, as though it were statically allocated, e.g.:

void doMore(int anArray[], int size)
{
    // ...
}

takes z as an argument, treating the pointer as an array.