Why array assignment operation doesn't exist but structure assignment does in C language?

Question

int a[10];
int b[10];

a = b; // illegal

typedef struct {
    int real;
    int imag;
    } complex;

complex c,d;
c = d; //legal

[I realize that

Answer 1

a is actually the "pointer" to the first element of array and it's a constant "pointer", so you are trying to assign an l-"pointer".

you can achieve what are you trying to do by :

struct arraystruct
{
  int t[10];
};


struct arraystruct a,b;

a=b;

EDIT:well i forgot to mention that there are a few exceptions where an array should not be considered as a pointer:

-you can use sizeof(array) but you cannot use sizeof(pointer)

-array of literal string

-a and &a are the same