Why is int x[n] wrong where n is a const value?

Question

I cannot understand why doing this is wrong:

const int n = 5; 
int x[n] = { 1,1,3,4,5 };

even though n is already a const valu

Answer 1

Even though n is a const, you cannot use it to define the size of an array unless you wish to create a VLA. However, you cannot use an initializer list to initialize a VLA.

Use a macro to create a fixed size array.

#define ARRAY_SIZE 5

int x[ARRAY_SIZE] = { 1,1,3,4,5 };