C++ error: field has incomplete type 'int []'

Question

I\'m making a virtual machine in C++ and I\'ve run into this error,

error: field has incomplete type \'int []\' int instrarr[];

I have a

Answer 1

It's pretty simple, int[] is an incomplete type, as it lacks information about how large it is. In function call parameters, it goes synonymous with declaring a pointer instead of an array, but for defintions, as in your code, the compiler certainly needs to know how large the array is, in order to allocate storage for it.