Thread: Two Dimensional Array Passing

Tell me to go back to the C board if you want but is this legal in C++?

Almost. It is legal, but it should not compile because nothing has been initialized.

Originally Posted by sand_man

Tell me to go back to the C board if you want but is this legal in C++?

Code:

int main(){
  int x = 5;
  int arr[x];
  return 0;
}

I don't think so. I think x should be constant. Someone please correct me if I'm wrong, but I believe the standard way to dynamically allocate an array is:

Code:

int x = 5;
int* arr = new int[x];

Edit:
And VS 2003 won't compile it:

error C2057: expected constant expression
error C2466: cannot allocate an array of constant size 0
error C2133: 'array' : unknown size

Originally Posted by JaWiB

And VS 2003 won't compile it:

I move we create a seperate topic when referring to what VS doesnt like and put it in its own forum.. because VS's a loner.