How to initialize an array to something in C without a loop?

Question

Lets say I have an array like

int arr[10][10];

Now i want to initialize all elements of this array to 0. How can I do this without loops or

Answer 1

The quick-n-dirty solution:

int arr[10][10] = { 0 };

If you initialise any element of the array, C will default-initialise any element that you don't explicitly specify. So the above code initialises the first element to zero, and C sets all the other elements to zero.